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December 30, 2014

Safety In Incest?! Why These Mongooses do Taboo

banded mongoose
Humans tend to know that incest is taboo. Nature even hints that there is more to this than just cultural restrictions. Most mammals avoid the practice too, as young males instinctively travel far away from their immediate families in search of a prospective mate. However, one population of banded mongooses seems to have missed the memo, and researchers are now investigating why. (Photo : Pixabay)

Humans tend to know that incest is taboo. Nature even hints that there is more to this than just cultural restrictions. Most mammals avoid the practice too, as young males instinctively travel far away from their immediate families in search of a prospective mate. However, one population of banded mongooses seems to have missed the memo, and researchers are now investigating why.

According to a study recently published in the journal Biology Letters, several large groups of wild banded mongooses in Queen Elizabeth National Park, Uganda, seem to be making incest commonplace, ignoring what has long been seen as an unspoken rule of nature against inbreeding.

Inbreeding, of course, still happens. In shrinking or isolated habitats, and among disappearing species, naturalists have observed dominant males turning to incest and patricide to ensure that reproduction goes on. A powerful example of this can be seen among the Santa Monica mountain lions. However, this has always been seen as a last-ditch effort to keep the species alive, where all other concerns (such as genetic diversity) are abandoned.

However, for the banded mongoose, its territory isn't shrinking, and its populations remain strong and numerous. So what's with the incest?

The researchers studied 14 groups living in the park over a period of 16 years, using tracking devices and markings to help identify various family members. They quickly noticed that these groups stayed very tight knit - maintaining about 18 adults at one time. Much like wolf packs, these groups also boasted a limited number of dominant males and females who did most of the breeding.

However, unlike wolves, young males and females were never seen splintering away from their family to join another or start a new one. Instead, the naturally short lives of female mongooses seemed to encourage dominant males to mate with their daughters and sisters, ensuring the groups' numbers were always peaked.

The researchers suspect that this may be a consequence of the naturally over-aggressive nature of the mongoose, in which groups will often violently turn away males and females that have split from another group. It also may have a lot to do with the idea of "safety in numbers," meaning waiting for fresh blood to breed with is far riskier than simply and constantly breeding among one another.

Still, the consequences of incest are well known, resulting in averse genetic mutation, birth complications, and even depression. How these mongoose populations compensate for that, remains to be seen.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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Land Mines in Middle East Offer Leopards Unique Refuge

Persian leopard
Usually if an area is laced with land mines, even the quickest and most light-footed creature would avoid such an imperiled environment altogether. But for Persian leopards in the Middle East, along the Iraq-Iran border, abandoned minefields offer these cats a very unique refuge. (Photo : Wikimedia Commons)

Usually if an area is laced with land mines, even the quickest and most light-footed creature would avoid such an imperiled environment altogether. But for Persian leopards in the Middle East, along the Iraq-Iran border, abandoned minefields offer these cats a very unique refuge.

Some 20 million landmines remained unexploded in this region, which has seen many conflicts over the years, and yet the Persian leopard has endured.

These lethal explosives keep out hunters and poachers that don't want to get blown away, so these prowling predators are provided a safe haven of sorts. But it's not as if these leopards have somehow defied the laws of gravity. National Geographic notes that the animals can spread their weight across four paws, treading lightly among the land mines that require about 180 pounds of pressure to detonate.

"Environmentally speaking, mines are great, because they keep people out," Azzam Alwash, of the wildlife organization Nature Iraq, told National Geographic.

The Persian leopard is listed as endangered by the International Union for Conservation of Nature (IUCN). While there are no official counts, the IUCN estimates that there are fewer than 1,300 adults in the wild worldwide. Their greatest threats include hunting for their lush pelts as part of the fur trade and killing in defense of livestock.

"Leopards are having to go nearer villages to hunt prey, and this has brought them into conflict with livestock farmers, who use poison or kill the animal with a rifle," said Arash Ghoddousi, who is involved in Iran's Persian Leopard Project.

Also, habitat loss from infrastructure development, deforestation, wildfire and livestock grazing is driving these leopards into smaller and smaller range, creating even more conflicts with humans.

According to National Geographic, Persian leopards, once spread across the Caucasus region, have been reduced to the former war zone between Iran and Iraq.

There is a sort of Catch 22 to the situation, in which the land mines offer a unique and accidental protection for Persian leopards - the largest leopards in the world - but also still pose a threat to local residents. Conservationists are in a tight spot as they oppose some land-mine clearance efforts, knowing the danger of these previous war zones.

While the situation of the Persian leopard seems precarious, some, including retired hunter Ahmed Kurdi, remain optimistic.

"The leopard is very strong," he said. "They're incredible animals. We couldn't kill them all even if we wanted to."

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 29, 2014

New Monkey Species Already Believed to be Endangered

white-faced saki monkey
What is believed to be a new monkey species in the Amazon rainforest may in fact already be endangered, according to researchers, due to deforestation in the region. [Pictured: White-faced saki monkey (Pithecia pithecia).] (Photo : Wikimedia Commons)

What is believed to be a new monkey species in the Amazon rainforest may in fact already be endangered, according to researchers, due to deforestation in the region.

According to a new study from the University of Mato Grosso, this previously undiscovered primate was spotted on three separate occasions in a part of the Amazon rainforest that until now has been largely unstudied. Scientists believe they have found a new type of saki monkey, given its unique calico coloring, though genetic testing will confirm this belief.

"We sent the first pictures to an expert, but everything suggests that it is a new species. The characteristics are very different," biologist Manoel dos Santos Filho told Brazilian news outlet G1 Globo.

Saki monkey is the common name given to any primate that is a member of the Pithecia genus, according to FactZoo.com. These animals live in rainforests ranging across South America from South Colombia to Central Brazil. They can reach up to 20 inches (50 centimeters) long and weigh about 4.4 pounds. And due to their elusive nature, as they rarely leave the trees that they live in, it's no surprise that there are unknown species of saki monkeys.

Although researchers know almost nothing about this possible new species, they do know that it is likely nearing extinction. The Dodo reports that the region in which these primates were found is among the hardest hit by deforestation, with 85 percent of the forest destroyed. According to some estimates, as many as 0.2 to 0.3 percent of the various species that live in the Amazon go extinct each year.

Nature World News recently reported that Amazon deforestation grew 29 percent last year, the first time the rate has increased since 2008. And though efforts are being made to curb this tree clearing, it may be too late for this mysterious monkey.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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Invasive Fire Ants Wreak Havoc in Hawaii

Litte fire ants
The Hawaiian islands are slowly being conquered, but not by an invading country or aliens from outer space. Instead, the aptly named "little fire ant" seems to be winning an ecological war on the island, surging back with a vengeance even after they were thought to be defeated earlier this year.
(Pictured: LFAs are incredibly small - no longer than a penny is thick - but are a menace to local vegetation and residents alike.) (Photo : Flickr: Forest and Kim Starr)

The Hawaiian islands are slowly being conquered, but not by an invading country or aliens from outer space. Instead, the aptly named "little fire ant" seems to be winning an ecological war on the island, surging back with a vengeance even after they were thought to be defeated earlier this year.

The tiny red ants, known for their painful rash-inducing stings and short tempers, were first noticed on the Big Island in 1999, likely having reached the island through shipping from Central America. Within the following decade, the invading ant population exploded, becoming far more than a nuisance.

Today, the ants are known to wreak havoc on local agricultural communities, shredding through vegetation even while they adversely affect helpful local fauna. They also have been known to rain down from trees on residents and are suspected to even blind pets. According to the Hawaiian Ant Lab, there is only one study that supports the theory that little fire ants (LFA) blind pets, but the circumstantial evidence remains strong, with instances of sudden pet blindness in the region abnormally high.

These problems have prompted Hawaiian officials to take action against the ants, with the United States government spending a stunning $7 billion across affected regions (primarily Florida and Hawaii) to contain and eradicate these ants.

Nine months ago, it seemed that these efforts were paying off, with a massive infestation in Maui declared officially eradicated after a decade-long battle. However, it was soon revealed that this is just part of a greater picture.

According to The Associated Press (AP), officials continue to battle a 13-acre infestation in Kalihiwai, Kauai, and three months ago, officials found the largest area of little fire ant infestation yet on 20 acres of forest near Nahiku on the northeastern shore of Maui.

It is suspected that this infestation was two decades in the making, and was simply long-overlooked.

"The (Agriculture) Department doesn't have enough personnel, and the ant could turn up anywhere," Randy Bartlett, a coordinator with the Hawaii Invasive Species Council, explained to the Honolulu Star Advisor.

He added that residents can help simply by identifying LFAs (not to be confused with European fire ants) in their own backyards.

"What we've seen so far could be just the tip of the iceberg," Bartlett warned.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 28, 2014

10 foods that cleanse the liver

In the past, I talked about my favorite food cleaning. This list is a bit more specific and mainly focuses on foods that can help cleanse the liver. Besides taking a supplement liver cleansing and applying at least two year clean liver and gallbladder, eat the following foods is the best way to keep your liver healthy and work the way you need. I encourage you to incorporate these foods into your weekly diet liver cleansing.

1. Garlic

Garlic



Only a small amount of this pungent bulb has the ability to activate liver enzymes that help your body eliminate toxins. Garlic also contains large amounts of allicin and selenium, two natural compounds that help cleanse the liver.

2. Grapefruit

Both the top and the antioxidants vitamin C, grapefruit increases the natural processes of cleansing the liver. A freshly squeezed grapefruit juice will help stimulate the production of liver detoxification enzymes that help eliminate carcinogens and other toxins.

3. Beets and carrots

 

Beets

Both are extremely rich in flavonoids and plant-beta-carotene; eat beets and carrots can help stimulate and improve liver function in general.

4. Green Tea

This magnet is filled liver plant antioxidants known as catechins beverage, a compound known to help liver function. Green tea is not only delicious, it's also a great way to improve your overall diet. Learn more about the benefits of green tea.

5. Leafy vegetables



Leafy Greens

One of our strongest allies cleansing the liver, leafy greens can be eaten raw, cooked or juiced. Extremely rich in chlorophyll in plants, green vacuum environmental toxins from the bloodstream. With its distinctive ability to neutralize heavy metals, pesticides and chemicals, cleaning these foods provide a powerful mechanism to protect the liver.

Try to include green leafy vegetables like bitter gourd, arugula, dandelion leaves, spinach, mustard, chicory and your diet. This will help increase the creation and flow of bile, a substance that eliminates waste of organs and blood.

6. Lawyers

This super rich in nutrients helps the body produce glutathione, a compound that is necessary for the liver to purify harmful toxins.

7. Apples



Apple

Rich in pectin, apple keep the chemicals necessary for the body to cleanse and release toxins from the digestive system. This in turn facilitates the liver to treat toxic load during the cleaning process.

8. Olive oil

Cold pressed organic oils such as olive oil seeds, hemp and flax are perfect for the liver when used in moderation. They help the body lipid core can suck toxins in the body. Thus, some of liver burden is accurate in terms of toxic overload many of us suffer.

9. Alternative grains

Not only do you have alternative grains like quinoa, corn, wheat and their diet is that if you have wheat, wheat flour or other whole grains in your diet, it's time to make changes. The liver is the filter body of toxins, and cereals containing gluten are full of them. A study last year found that people who suffered gluten sensitivity test also had abnormal liver enzymes, and this is just one of many.

10. Lemons and Limes

Lemons and Limes

These citrus fruits contain high amounts of vitamin C, which helps the body to synthesize toxic substances into substances that can be absorbed by the water. Drink freshly squeezed lemon or lime juice in the morning helps stimulate the liver.

 

December 27, 2014

Invading Ant Armies Help Harmful Plants Spread

Invading Ant Armies Help Harmful Plants Spread
Invasive species are a menace enough when they wade into a new and vulnerable ecosystem alone, but what happens when they help one another set camp and wage war on ecological stability? A new study has found that an invasive fire ant is doing just that in North America, marching through foreign soils and helping invasive plants spread. (Photo : J.G. Sanders)

Invasive species are a menace enough when they wade into a new and vulnerable ecosystem alone, but what happens when they help one another set camp and wage war on ecological stability? A new study has found that an invasive fire ant is doing just that in North America, marching through foreign soils and helping invasive plants spread.

The European fire ant is not exactly a new invader of North American shores. Hardy, aggressive, and prolific reproducers, these ants have found themselves some comfortable footholds in the northwestern globe, bullying out local ant populations.

With these "forward camps" long established, these ants are now helping other species invade and spread, posing a far greater threat to local ecosystems than once thought.

"Ecologists think invasive species might help each other to spread, but there are few good examples. They talk about 'invasional meltdown,' because ecosystems could be very, very rapidly taken over by invasive species if invaders help each other out," evolutionary biologist Megan Frederickson explained in a recent statement. "Our results suggest that invasional meltdown could be happening right under our noses, here in Ontario."

Frederickson recently helped author a study published in the journal Proceedings of the Royal Society B, which details how she and her colleagues assessed how the European fire ant is interacting with invaded environs.

According to the study, the research team crafted several test pools which contained three local plants and one invasive species (greater celandine). They then exposed these test pools to either European fire ants or local ant populations.

"The pools with the invasive ant were overrun by the invasive plant, but pools with the native ant had lots of native plants," said co-author and ecologist Kirsten Prior.

The researchers suspect this has a lot to do with the simple fact that the invasive ants spread and reproduce quicker than their native competitors, meaning they spread seeds faster, This likewise give invasive plants a means to more quickly bully out local vegetation.

"Our finding that multiple invasive species can accelerate invasion and cause ecosystems to become dominated by invasive species is a troubling one," Prior added, saying that more research into these sort of dangerous relationships is important.

"It sets us on the right path to develop solutions to reduce the spread and impact of these harmful species," she explained.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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Giant Clams: Unsung Heroes for Coral

giant clam
Giant clams have been a hard-to-miss part of coral reef ecosystems for the greater part of the last 38 million years. However, experts will be quick to admit that the part they play in these incredible systems remains rather shrouded in mystery. Now a new study hopes to pull back the veil and further our understanding of these clam colossi. (Photo : Flickr: BBM Explorer - Rob)

Giant clams have been a hard-to-miss part of coral reef ecosystems for the greater part of the last 38 million years. However, experts will be quick to admit that the part they play in these incredible systems remains rather shrouded in mystery. Now a new study hopes to pull back the veil and further our understanding of these clam colossi.

The study, recently published in the journal Biological Conservation details how the giant clam is not only a member of the incredibly diverse and complex coral ecosystem, but it may be an essential founding member, serving as an assistant reef builder, shelter, algae provider, water filter, and even "pantries" for reef inhabitants.

To quantify the extent of these services in hard numbers, researchers from the University of Singapore poured over extensive archives of publications proceedings, dissertations, books, and even technical reports (481 publications in all) concerning  the giant clam (Hippopus and Tridacna species). They then compiled observations and data from this assents with data from their own field surveys to determine that 13 species of giant clam in particular serve as coral ecosystem food factories.

According to the study, these massive clams can grow up to 40 feet long and 60 pounds heavy, and often host food-making algae known as zooxanthellae. This food attracts predatory lobsters and crabs, whose feces in turn attract opportunistic feeders and scavengers like snails and their ilk.

These species are essential for keeping a growing coral colony clean free of diseased, as you can't have a city without its garbage men.

They also help build reefs directly. Dense populations of clams lead to some species producing an estimated 80 metric tons of carbonate shell material per hectare each year, which serves as initial housing for soft corals as they acquire the symbiotic algae partners they will need to keep a sturdy coral colony growing.

"They also filter large volumes of water-which can potentially counteract eutrophication," the researchers wrote, citing a process of water pollution often cause by agricultural runoff in this modern age.

"We are not proposing that giant clams are essential to the survival of coral reefs; however, there can be no doubt that they make a positive contribution to these critically important tropical ecosystems," they add.  "Based on the wide range of ecological functions they perform, giant clams are unique among reef organisms and therefore deserve attention... a greater understanding of giant clams' contributions will provide managers with 'ammunition' to justify their protection."

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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Gliding Lizards Use Christmas Colors as Camouflage

Draco cornutus
Christmas may be just behind us, but for gliding lizards living in Borneo, it lasts all year round. These reptiles use the holiday's characteristic red and green colors as camouflage to avoid being eaten by predatory birds, a new study says. (Photo : Dr. Devi Stuart Fox)

Christmas may be just behind us, but for gliding lizards living in Borneo, it lasts all year round. These reptiles use the holiday's characteristic red and green colors as camouflage to avoid being eaten by predatory birds, a new study says.

Draco cornutus have evolved wing-like membranes - called patagia - that resemble the colors of falling leaves around them so that when they glide between trees in the rainforest, they evade detection by hungry birds.

Draco, found throughout Southeast Asia, is the only living genus of lizard with extendable gliding membranes.

"It's a cool finding because these gliding lizards are matching the colors of falling leaves and not the leaves that are still attached to the tree," lead study author Danielle Klomp, from the University of Melbourne, said in a press release. "In the mangrove population the leaves on the trees are bright green, but turn red shortly before falling to the ground, and it is this red color that the lizards mimic in their gliding membranes. This allows them to mimic a moving part of the environment - falling leaves - when they are gliding."

Whereas the other studied population of gliding lizards, which lives in lowland rainforest habitat, has dark brown and green gliding membranes to match the falling leaves in the area.

According to the study, this type of camouflage is highly effective, as the predatory bird cannot distinguish between the lizards' gliding membrane color and that of a falling leaf in the same forest.

"Perhaps these populations may have originally had the same gliding membrane colors," Klomp added, "but as they have moved into different forest types their colors have adapted to closely resemble the colors of falling leaves in the different forests, known as divergent evolution."

The findings were published in the journal Biology Letters.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 26, 2014

How to Sleep like a Baby

It’s 3:00 a.m. where are you? Most people would probably be asleep. However, for a large majority of people, it is near impossible for them to get a good nights rest. Without it, they are unable to focus well, they have low energy, and let’s face it, they are usually in a not so good mood. Is there anything that the sleep deprived can do in order to help give their body the much needed sleep it needs? Aside from counting sheep, which rarely works, try some of the suggestions below.

How to Sleep like a Baby

First, start out by examining your bedroom for sleep distractions. Sleep distractions would be such things as clutter, the color of the paint, the noise level, etc. If your room is painted in bright, electrifying colors, you may want to consider painting it a soothing cool color. A pale green or a soothing blue would be good choices. You can’t expect to be able to sleep if the paint in your bedroom is so bright that it looks like an airport runway.

If your room is cluttered, consider scheduling a spring cleaning day and get rid of all those unwanted sleep thieves. If a room is cluttered, it gives our mind more things to focus on and think about during the night instead of sleep. Your bedroom is supposed to be your sanctuary, and let’s face it, who wants piles of bills or junk mail in their sanctuary? Not too many people.

As far as the noise level goes, this is different for each person. Some people enjoy some form of noise while they sleep and may even purchase a noise machine, while others have to have quiet. If you fall into the latter category, try purchasing some heavy drapes to see if they block out any of the unwanted noise. While the drapes probably won’t get rid of every unwanted noise, you will notice a big difference.

Next, try not to exercise before going to bed. I’m not saying don’t exercise at all, because exercise is good for us, but we all know that exercise releases endorphins which amp us up. You can’t expect to be able to go to sleep if you feel like you could run a marathon. Try to keep exercise to either early in the mornings or to around four hours before bedtime. This will give your body time to calm down and will help you to drift off to sleep much easier.

Another suggestion to help you get a good nights sleep would be to take a nice warm bath just before you are ready to go to bed. The warm bath will not only help you to relax physically, but it will also give your brain some time to unwind as well. It doesn’t have to be a long bath, just 10 or 15 minutes should do the trick. As you are letting the water out of the tub, picture your troubles and cares being washed down the drain. A mind that is not burdened with troubles is a mind that can easily drift off to sleep.

Lighting is another issue that effects sleep. If your bedroom window lets the light of a nearby street light into your bedroom, you might want to try some of those room darkening curtains to eliminate that problem. If you can’t find any or can’t afford them, try putting a quilt up instead. If your curtain rods are sturdy, they will usually hold up the extra weight of the quilt. Either of these two things will help darken your bedroom and help you drift off to what could be the best nights sleep you’ve had in a while.

Of course, don’t forget to flip your mattress every so often to keep it from getting worn. However, if your mattress is not in good shape and you can’t afford to buy a new one (because we know they don’t come cheap), consider buying a mattress topper. This will give you the sense of a new mattress, but will cost you a fraction of the price. Toppers come in a variety of styles, and it is up to you to find the one that suits your needs.

The last tip, try and keep the temperature in your bedroom at a comfortable level. You don’t want the temperature too hot or too cold. You want it just right. Again, it is up to you, as an individual, to decide what your perfect temperature is. Try these few tips out and see if they help you get the peaceful nights slumber your body has been missing. Pleasant dreams sleep deprived.

December 24, 2014

Femme Fattale: Why Cannibal Mantids are Sexy

mantis mating
We all know that some of the nastiest lady-bugs eat their mate right after coupling. It’s a disturbing side of the invertebrate world that we humans have trouble wrapping our heads around. “If she’s going to eat him after they mate, why would he go anywhere near her?” is one question commonly asked. Now new research shows that male bugs aren’t necessarily stupid, they’re just gullible. (Photo : Flickr: Johannes Viloria)

We all know that some of the nastiest lady-bugs eat their mate right after coupling. It's a disturbing side of the invertebrate world that we humans have trouble wrapping our heads around. "If she's going to eat him after they mate, why would he go anywhere near her?" is one question commonly asked. Now new research shows that male bugs aren't necessarily stupid, they're just gullible.

The common mantis is one species that is infamous for its "man-eaters" - that is, female mantids that eat their smaller male partner's right after mating. However, contrary to popular belief, not every female is a man-eater. In fact, well-fed and healthy lady mantids will often just leave their mate alone after copulation, leaving the male to go and try his hand at siring more children elsewhere.

In a study recently published in the journal The Royal Society: Proceedings B, it was revealed that female mantids are most likely to eat their mate when they are underfed and in need of essential nutrients to mother a healthy brood.

That of course, led researcher Katherine Barry, at Sydney's Macquarie University, to wonder "if it simply undernourished females who will eat their mates, why don't male mantids simply steer clear of them?"

After all, entomologists have long known that it is males who select their mates in mantis populations, and not the other way around. Female mantids even release pheromones that indicate the state of their health, where males will always select the strongest of mates out of a healthy female population.

So why is it that males are willing to walk into mouths of starving females too? They clearly know better. (Scroll to read on...)

The morbid sight of a female mantis carrying the corpse of her late husband/latest meal on her back.
(Photo : Flickr: siamesepuppy) The morbid sight of a female mantis carrying the corpse of her late husband/latest meal on her back.

According to Barry, this may be a very clear example of "femme fatale," where males are somehow drawn to the most dangerous of the opposite sex - a phenomenon that the species as a whole can benefit from (IE- leading to more successful reproductions and healthy offspring.)

In a series of experiments, Barry found that males are drawn to the airborne sex pheromones of undernourished females even more than those of well-fed females. In fact, they appear to prefer signaling from a hungry female mantid over all else.

Barry suggests that this example of "femme fatale" may be the product of sexual deception, where uncharacteristically "dishonest" chemical cues are exclusively developed by starving insects to ensure a healthy brood.

However, more research will need to be conducted to determine how and when theis unique adaptation occurs.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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‘Doomed’ Corals to Face Worst Bleaching in Decades

partially bleached coral
Researchers recently pieced together a vast puzzle of chemical and weather logs found deep within the skeletons of tropical corals in a famous Pacific archipelago. The result was a stunning warning about the near-future: a bleaching event is coming, and it may be the worst seen in at least 20 years. (Photo : Flickr: Matt Kieffer)

Researchers recently pieced together a vast puzzle of chemical and weather logs found deep within the skeletons of tropical corals in a famous Pacific archipelago. The result was a stunning warning about the near-future: a bleaching event is coming, and it may be the worst seen in at least 20 years.

Corals "bleach" when they become over-stressed. This usually occurs in the wake of uncharacteristically warm temperatures in coral habitat or sudden spikes in ocean acidification and causes the unique animals to expel the algae that symbiotically live within their flesh. This not only makes the corals look fuzzy and pure white, but it also severely weakens them. Without their algae friends to keep their skeletons calcified and healthy, the corals become brittle. Overstressed, exposed coral flesh also becomes increasingly vulnerable to disease.

A recent report from United Nations investigators estimated that warming ocean climes, ocean acidification, and the resulting bleaching events will cost the world economy over a trillion dollars in various resources and services by 2100.

That estimate was based on if the rate of climate change and ocean acidification (caused by rising carbon levels) stayed as it is now.

However, what if natural ocean temperature cycles came to exacerbate this problem? According to a study recently published in Nature Geoscience, a change in Pacific trade winds that occurs every two to three decades is nearly upon us, and its unlucky timing may lead to one of the worst bleaching events ever seen.

"When winds weaken, which they inevitably will, warming will once again accelerate," Diane Thompson, who led the study at the National Center for Atmospheric Research, recently told Scientific American.  "The warming caused by greenhouse gases and the warming associated with this natural cycle will compound one another."

Thompson and his colleagues closely analyzed clues found within the skeletons of coral growing at the Tarawa Atoll in Kiribati. Like tree rings tell about the history of rainfall, the calcification of coral skeleton can cryptically speak of decades of temperature patterns, and Thompson's team believes they have determined how to understand it. (Scroll to read on...)

A ghostly forest of bleached staghorn coral.
(Photo : Flickr: Matt Kieffer) A ghostly forest of bleached staghorn coral.

Unfortunately, that understanding has painted a very bleak picture for tropical conditions. The researchers found evidence of weak trade winds early in the 20th century. Those winds coincided with a period, from 1910 to 1940, when global temperatures rose faster than could have been caused by greenhouse gas pollution alone. They suspect that history is due to repeat itself soon.

Amazingly, this study isn't the first to warn of encroaching temperature spikes in the Pacific. Another Kiritabi core analysis published in the journal Paleoceanography back in November detailed how the tropical region is due for another cycle of warn-water El Niño events, which occur every two to seven years.

"The trend is unmistakable," lead-author Jessica Carilli said. "The ocean is primed for more El Niño events."

However, it remains unclear how the aforementioned dying trade-winds will affect this trend, and may exacerbate the problem for corals.

Mark Eakin, a coordinator at the NOAA's Coral Reef Watch program recently told Mashable that this perfect storm of bleaching conditions may already be starting.

"Not only are we seeing more thermal stress ... but we're making [corals] more sensitive at the same time (through heightened carbon levels)," he said.

"We're seeing rising background temperatures - we're seeing this increase in the thermal content of the oceans and as that happens it doesn't take as nearly as big of an event to set off a chain of bleaching," he added.

The result, the expert says, would be a bleaching event that could put our last largest event (the largest in 20 years) to shame.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 23, 2014

Debate Over Protecting Sage-Grouse Re-Ignited with New Federal Bill

greater sage-grouse
The long-standing debate over protecting the sage-grouse, a rare bird species in Colorado and the West, has been re-ignited with a new federal bill passed by Congress last week. [Pictured: Greater sage-grouse.] (Photo : USFWS/Stephen Ting/Flickr)

The long-standing debate over protecting the sage-grouse, a rare bird species in Colorado and the West, has been re-ignited with a new federal bill passed by Congress last week.

According to The Associated Press (AP), certain provisions or "riders" in the 1,603-page spending bill has barred the federal government from splurging on rules to protect the bird. Meanwhile, wildlife managers with the US Fish and Wildlife Service (FWS) say that the sage-grouse is heading towards extinction, and this bill would prevent them from intervening on behalf of the species' survival.

"Rather than helping the communities they profess to benefit, these members (of Congress) will only create uncertainty, encourage conflict and undermine the unprecedented progress that is happening throughout the West," Sally Jewell, secretary of the Department of the Interior, said in a statement last week.

Story of an Underdog

There are two species of sage-grouse involved in this controversy - the Gunnison sage-grouse and the greater sage-grouse. Both birds- known for their elaborate mating rituals - are rare, The Denver Post reports. Larger in size than the Gunnison, the greater sage-grouse also has a bigger population, estimating at 200,000 to 500,000 in 11 Western states.

But the Gunnison sage-grouse is the real underdog in this fight, with just 5,000 of these guys left in the wild. The FWS listed it as a threatened species in November - a decision that was highly criticized by political leaders - and should they want to upgrade this status to "endangered" in the near future, they would be unable to do so, according to the new bill.

So why is Congress so opposed to protecting this rare bird species? When it comes to protecting the sage-grouse, its endangered status comes with numerous restrictions that would impact homebuilders and energy companies, including drilling and fracking operations, for example. The greater sage-grouse's expansive habitat is of particular concern to lawmakers and businessmen, which could affect as many as 31,000 jobs and $5.6 billion in economic activity.

This isn't to say that Congress is not empathetic to the bird's situation. Local and state officials have been somewhat successful in protecting the Gunnison sage-grouse, even without the official endangered listing. And they believe that this new legislation, in time, wouldn't impede future efforts.

"If the rider achieves what it's intended to achieve, it will give more time for state and local efforts to show their effectiveness," Kathleen Sgamma, Western Energy Alliance vice president of government and public affairs, told The Post.

Gunnison sage-grouse populations in the Gunnison County area are stable, but the rest that live in fringe colonies in eastern Utah and western Colorado will die off within the next 60 years, according to the FWS.

The agency plans to continue gathering data, with help from Indian tribes, government agencies and others, on sage-grouse numbers to better determine whether the bird warrants protection under the Endangered Species Act, the AP reports. This is despite the fact that the FWS is prohibited from making that final step from "threatened" to "endangered."

While conservationists are sticking to their guns, the fate of the dwindling sage-grouse remains uncertain. The bird's future listing could depend on whether Congress votes next year to keep the bill's new restrictions going.

A Mating Ritual

Sage-grouse are known for being a highly charismatic bird, whose mating ritual is described as one of the most fascinating and colorful natural history pageants in the West, according to Defenders of Wildlife. In early spring, swarms of males come out at dawn and dusk in "leks" - ancestral strutting grounds that are up to 40 acres in size and some 50 miles from the birds' wintering habitat. The cocks parade around, showing off their long, white-tipped black feathers and swelling their breasts to reveal bright yellow air sacs, in order to entice nearby hens.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 22, 2014

Baby's First Christmas - Celebrity Edition

The year of 2014 brought big changes in the lives of some of our favorite celebrities. New records, new releases, and new awards are always exciting, but nothing can measure up to the beauty and amazement of the birth of a baby. Meet all the new mini-celebrities that will be celebrating their very first Christmas this year.

Baby Schuyler
Parents: Rodger Berman and Rachel Zoe
Rodger Berman and Rachel Zoe (celebrity stylist) welcomed their very first baby this year, Schuyler Harris. Judging from his custom made shoes and his Missoni stroller, I think it's very safe to make the assumption that Schuyler's first Christmas will be filled with Gucci, Prada and Chanel.

Baby Flynn
Parents: Orlando Bloom and Miranda Kerr
Actor Orlando Bloom (Pirates of the Caribbean, Lord of the Rings) and model Miranda Kerr may have given birth to the cutest baby alive. With brown hair and big blue eyes, he has been making headlines since day one. This is an extra exciting time of year for Baby Flynn; he will be celebrating his first birthday on January 6th.

Baby Haven
Parents: Cash Warren and Jessica Alba
Producer Cash Warren and actress Jessica Alba (Fantastic Four, Sin City) welcomed their second daughter, baby Haven Garner in August, much to the delight of big sister Honor Marie. Jessica recently took both three year old Honor and four month old Haven to meet Santa Claus in their local mall. How sweet is that!

Baby Morocco and Baby Monroe
Parents: Nick Cannon and Mariah Carey
Nick Cannon (America's Got Talent) and singer/actress Mariah Carey welcomed their twins on April 30th of this year. This adorable duo made one of their first public appearances last Christmas when Mariah was visibly showing during her Christmas Special. Morocco was named after the Moroccan inspired room in which Nick proposed to Mariah, and Monroe was named after one of Mariah's longtime role models, Marilyn Monroe.

Baby Harper
Parents: David & Victoria Beckham
World renowned power couple David (English soccer star) & Victoria Beckham (designer) welcomed their very first daughter this year. Baby Harper Seven joined older brothers Brooklyn, Romeo and Cruz.

Baby Bingham
Parents: Matt Bellamy and Kate Hudson
Matt Bellamy (front-man of Muse) and actress Kate Hudson (Bride Wars, How to Lose a Guy in 10 Days) welcomed their first baby, Bingham Hawn in August. Baby Bingham joins Kate's older son Ryder, who affectionately calls him Bing.

Baby Arabella
Parents: Jared Kushner and Ivanka Trump
Jared Kushner and entrepreneur and daughter of Donald Trump, Ivanka Trump, married in October 2009, welcomed their very first baby, Arabella Rose on July 17th of this year.

Baby Aleph
Parents: Benjamin Millepied and Natalie Portman
Producer Benjamin Millepied and actress Natalie Portman (V for Vendetta, Black Swan) welcomed their first baby, Aleph this year. Aleph is the first letter of the Hebrew alphabet, a sweet tribute to the Hebrew background of the couple.

And there, my friends, are the newest celebrities of 2011. Merry Christmas to all the baby celebs and their parents! I can't help but wonder which celebrities will make this list next year...

Christmas Simplification

This year, our famous Christmas easiest way family. We hope to fly to Texas to be with the parents and siblings of my husband, leaving the week before Christmas.

Because of these great travel plans for our rowdy group of six years, many things have been simplified in December. And I find it very liberating. Although I usually like the tradition of cutting and decorating our tree this year alone, we turned on the vegetation in our piano and some Christmas decorations scattered around the house. Decoration took half the time and half the cost! Small and simple gifts are purchased that can be easily packed in our bags. In fact, I was almost done shopping in early December!

Stress December

With a lower tone Christmas reminded me of why I often feel so stressed in December. Try to get all the good cookies to participate in ten different Christmas events, and find the perfect gift for all those involved in the life of our family. Throughout the Christmas chaos, the true meaning of Christmas is often lost. Jesus is our greatest gift, and it is your life we are celebrating.

The other night at dinner, we talk to our children about Jesus Christmas maintain concentration. With worried eyes my six year old asked me, "Mom, this is not the right to give gifts" Of course, does not mean involve giving gifts is wrong but we want our children?. understand that the gifts are not the main point of Christmas. as we talked about other ways to share the love of Jesus at Christmas, playing the piano and singing in the nursing homes to buy gifts for someone in need, my six year old son started talking she is happy you can stillgive do this kind of things and gifts to each other (reference to mom and dad).

Teach our children the great gift

So this year I'm on a mission to simplify and enable new ways to teach our children the great Christmas. Here are some things we do.

Every night before Christmas (well, maybe not every night but mostnights) we read of our favorite Christmas devotional side of the table, take the time to discuss issues and the beautiful singing hymns included.

We use our Advent calendar to think of an attribute of God or a gift that Jesus gives us each day. Children turning thinking of them and write on a piece of paper in your pocket.

We give our children a sum of money to help World Vision project of their choice. At this point, our son is most excited about the project sunlight.

We sing songs with our own family one or two nights after dinner.

We find creative and simple solutions to bless others with our time and resources, a phone call or a piece of bread.

A family favorite: representing the Christmas story on Christmas morning, as we read in the Bible. Although I wonder how many more years the ass (my husband) can lead to regrowth Mary!

My encouragement to you and to my own heart this Christmas is to avoid becoming so busy doing things (even good things!) The tight time to reflect and appreciate the true meaning of Christmas. Christmas does not mean simply declined. Even if you decide to jump in butter recipe grandma cookies, who still love the wonder of Jesus, the greatest gift

Big or Small, Mammals Take 21 Seconds to Pee

call of nature
In what at first seems like some pretty pointless research, experts have discovered a surprising fact about urination: no matter the size of body or bladder, all mammals take just about the same time to pee. (Photo : Flickr: Mike Finkelstein )

In what at first seems like some pretty pointless research, experts have discovered a surprising fact about urination: no matter the size of body or bladder, all mammals take just about the same time to pee.

That's at least according to a study recently published in the Proceedings of the National Academy of Sciences of the United States of America (PNAS), which reveals that housecats, dogs, and even elephants will all take an average of 21 seconds to answer nature's call.

That's a stunning revelation especially considering that a common elephant holds about five gallons (18 L) of urine in its immense bladder. Your average domesticated dog, on the other hand, can hold only about 1.3 tablespoons (20 ml) before it goes looking for the nearest fire hydrant.

Reason would say that it should take far less time to empty a 20 milliliter balloon than an 18 liter one, so what's going on? According to a team of researchers from the Georgia Institute of Technology, it really all comes down to the urethra - the "bendy straw" of the bladder.

According to the researchers, the urethra is much more than a universal means of urine expulsion among animals. It is, in fact flow-regulating and "flow-enhancing, enabling the urinary system to be scaled up by a factor of 3,600 in volume without compromising its function."

In an analysis uniting the results of 41 independent urological and anatomical studies, the researcher found that all mammals that weight more than 6.5 lbs have urethras with a length-to-width ratio of 18. Larger animals have longer and wider urethras, allowing them to take more advantage of gravitational forces to speedily empty their bladders within 21 seconds (give or take 13 seconds). Meanwhile an absence of this force makes it harder for smaller animals to empty their tiny bladders.

So mystery solved! However, one question still remains: why does this even matter? According to the authors of the study, these findings are actually very valuable to professionals in the veterinary world, where urination duration can help identify and diagnose health problems in animals.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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A Vaccination for ‘Mad Cow-Like’ Disease

deer
Researchers from New York University are claiming to have developed a vaccination regimen that can effectively fight off brain-wasting disease, like Mad Cow disease, which can infect deer and other animals. They say that this will solve problems on two fronts: preventing livestock infection and also halting a risk of these diseases jumping to humans. (Photo : Pixabay)

Researchers from New York University are claiming to have developed a vaccination regimen that can effectively fight off brain-wasting disease, like Mad Cow disease, which can infect deer and other animals. They say that this will solve problems on two fronts: preventing livestock infection and also halting a risk of these diseases jumping to humans.

That's t least according to a study recently published in the journal Vaccine, which details how the vaccination has seen its first success in protecting trial populations from chronic wasting disease (CWD).

CWD is a rare and often fatal kind of disease that is caused by unusual and infectious types of proteins called "prions." These deadly and harmful proteins spread by converting "good" proteins over to their side, exponentially turning a body against itself.

There are a number of infectious diseases in humans that suspected to be caused by prions (Creutzfeldt-Jakob disease, kuru, and familial insomnia to name a few) but because we know so little about the mechanics of these harmful proteins, it has been difficult to identify and treat them.

CWD, however, is one illness for which researchers are certain prions are the cause. Afflicting as much as 100 percent of North America's captive deer and elk population, it is not nearly as aggressive and fatal as Europe's infamous Mad Cow Disease (another prion disease). However, it still poses a threat, especially if it were to somehow jump to human populations.

That's why researcher sought to developed a vaccination that was first tested on mice, and was later tested with stunning success among deer.

Five deer in all were given the anti-prion vaccine, while another six members of the same captive test herd were given a placebo. The five vaccinated deer were also given eight booster shots over the course of the study until key antibodies were detected. The deer population was monitored for two years, and in that time, all six of the placebo group contracted CWD. Four of the vaccinated group also eventually contracted the disease, but after a much longer period of time. Amazingly, the fifth vaccinated deer remains immune.

"Now that we have found that preventing prion infection is possible in animals, it's likely feasible in humans as well," senior study investigator and neurologist Thomas Wisniewski added in a statement.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 19, 2014

Bird-Built Snow Tunnels: Is it all 'Just Play'?

redpoll
Do you remember those childhood Decembers when it snowed so hard that you had feet of packed powder to play with? You could build a snowman, have a snowball fight between snow forts, or - my personal favorite - you could tunnel. Now researcher are suggesting that this is a favorite past-time for many small birds too, as they don't have any other explanation for why this tunneling occurs. (Photo : Flickr: Ron Knight)

Do you remember those childhood Decembers when it snowed so hard that you had feet of packed powder to play with? You could build a snowman, have a snowball fight between snow forts, or - my personal favorite - you could tunnel. Now a researcher is suggesting that this is a favorite past-time for many small birds, too.

That's at least according to a study recently published in the Northeastern Naturalist, a BioOne scientific journal.

The study details observations made by Bernd Heinrich, a professor and biologist at the University of Vermont. The researcher headed out to Western Maine two years ago to watch a flock of about 150 redpolls (Carduelis flammea) make at least 252 cavities and short tunnels in the snow between November and the following February.

He recently admitted to New Scientist that he had always wondered why these birds, (or any small wintering bird for that matter) dug these tunnels and trenches. From initial observation it became clear that there often wasn't any additional food buried beneath the snow, so why the tunnels?

The researcher suspects, surprisingly, that the birds are simply enjoying their time in the snow.

"Play is defined as behavior with no immediate function, so in that sense, yes, it is 'just' play," he said.

Still, this playful behavior may have once had some serious roots, where groups of the birds farther north would be tunneling to make insulated pockets of warmth to spend the night in.

However, the playful redpolls in Maine don't huddle down in their tunnels like their northern cousins. That's because melting snow surface can freeze overnight, potentially trapping the birds in a chilly tomb.

However, the Maine birds will still tunnel during the day, and will do so with gusto if the rest of their flock joins in on the fun.

Heinrich observed that when one bird tunnels, all its friends and family will stop what they are doing to tunnel too, showing that it is likely just a social activity - bonding for birds during the holiday season.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 18, 2014

Chickens and Turkeys Are Closest Dino Relatives Among Birds

turkey profile
Turkey Day is behind us, but that doesn't mean our appreciation of the bird should end with it. That's especially true after new research revealed that the turkey, along with the chicken, remain the most genetically similar to their dinosaur ancestors, even despite decades of domestication and breeding. (Photo : Pixabay)

Turkey Day is behind us, but that doesn't mean our appreciation of the bird should end with it. That's especially true after new research revealed that the turkey, along with the chicken, remain the most genetically similar to their dinosaur ancestors, even despite decades of domestication and breeding.

A study recently published in the journal BMC Genomics details how chickens and turkeys have experienced far fewer gross genomic changes than other birds during their dino-to-avian evolution.

This means that there are likely the most similar to their scaly ancestors, compared to songbirds or even birds of prey.

The research was part of a larger consortium of leading research into avian genomes, which tells a clear story of species evolution that can help us better understand the process.

"Bird genomes are distinctive in that they have more tiny microchromosomes than any other vertebrate group. These small packages of gene-rich material are thought to have been present in their dinosaur ancestors," researcher Darren Griffin recently explained in a statement. "We found that the chicken has the most similar overall chromosome pattern to its avian dinosaur ancestor."

To determine this, Griffin and his colleagues recently conducted an analysis of of the whole genome structure of the chicken, turkey, Pekin duck, zebra finch, and budgerigar (common pet parakeet). They then studied data from a total of 21 avian genomes and one reptile species to put together a karyotype - organized profile - of the dinosaur ancestor for each chromosome of six highlighted genomes.

They also found that among all the studied species, the finch and the budgerigar underwent the most highest rate of chance since their prehistoric origins - a trend that appear common among songbirds and their relatives.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 17, 2014

Baby Elephants Captured in Zimbabwe - What's Really Going on?

baby elephant
Reports have come in that officials from the Zimbabwe Parks and Wildlife Management Authority (ZPWMA) have taken several dozen baby elephants away from their parents, in preparation to ship them to unspecified zoos. This has earned a significant amount of public outcry, even as some hard questions are being asked. (Photo : Pixabay)

Reports have come in that officials from the Zimbabwe Parks and Wildlife Management Authority (ZPWMA) have taken several dozen baby elephants away from their parents, in preparation to ship them to unspecified zoos. This has earned a significant amount of public outcry, even as some hard questions are being asked.

This all stems from an investigation launched by the Zimbabwe Conservation Task Force (ZCTF) last month after tourists and visitors to Hwange National Park reported seeing animals being captured and taken away.

The ZCTF's investigators later reported that 34 baby elephants, seven lions, and about 10 sable were captured and held at Mtshibi Capture Unit.

"Our investigators have seen the animals and tried to take photos but were not allowed. The security there is very tight," the force reported. "They were told that the animals will be sent by container trucks to Maputo in Mozambique where they will be transferred to a livestock sea freighter and sent on to China."

The investigators went on to express concerns that not only could the youngster elephants (2 -5 years old)  potentially die during the trip from Zimbabwe to China (6000 miles as-the-crow-flies), but the harassed parents will now pose a threat to human visitors and park staff, angered by the abduction. After all, 'an elephant never forgets.'

Conflicting Claims

However, before you join in the public outcry against this apparent robbery from Zimbabwe's gentle giants, it's important to note that the ZCTF report lacked some important details. What zoos are the elephants bound for? Were these animals really stolen from their parents?

Saviour Kasukuwere, Zimbabwe's environment minister, told the Telegraph earlier this month that the capture did indeed happen, but it wasn't some kind of back door deal to feed China's ivory trade like the report implies. In fact, he said that these kind of actions are taken from "from time to time," as Hwange National Park is the country's largest game reserve. (Scroll to read on...)

(Photo : pixabay)

Kasukuwere added that the baby elephants, alongside 10 lion cubs (not seven) and the 10 rare sables, are being sent to vetted zoos and wildlife facilities in the United Arab Emirates, not China. He did not specify which ones.

"We have not authorized any exports of elephants to China," he said in an email to National Geographic.

However, investigators from the Project to End Grate Ape Slavery (PEGAS) were quick to dispute the minister's assertion, calling it nothing more than a "smokescreen" to the truth.

"[We have] obtained reliable information that a zoo in Guangzhou, China, intends to import 50 elephants from Zimbabwe," PEGAS reported.

Unfortunately, their source chose to remain anonymous and never indicated where exactly these elephants were coming from, or whether they were wild or raised in captivity.

Trouble in Hwange

And despite a growing call to tar-and-feather the ZPWMA, Hwnage's history indicates that Kasukuwere might not be lying.

Studies have indicated that Hwange National Park often boasts a larger elephant population than the 9700 square-mile landscape can support, and back in late 1960s, the park even had to implement a culling to prevent herds from starving. Since then, the park has become more sustainable, with the remaining population doubling by the turn of the new millennium. (Scroll to read on...)

(Photo : pixabay)

It should also be noted that the difficult-to-manage park suffers from poaching. Back in Oct. of 2013, poachers killed 84 African elephants at once after poisoning a popular watering hole with cyanide. According to the park, efforts are taken to round up "ivory orphans" who will often stand over the corpses of their parents for days or weeks on end. The orphans, at vulnerable ages, will sometimes be taken into captivity to monitor their health and behavior.

However, it was not made clear if the newly captured animals are orphans as well.

Too Young to Move

Ironically, with all this confusion concerning the legality and destination of the Hwange exportation, the ethics of the move may be the clearest factor.

"Whatever the circumstances of their capture, we can hardly imagine the physical and emotional torment these animals will suffer: confined, alone and frightened on a long voyage," Paula Kahumbu, a leader for the Hands Off Our Elephants campaign, recently wrote for The Guardian.

"Elephant mothers suckle their young for five years," she added, "which means that many of the elephants bound for [elsewhere], some as young as two-and-a-half years old, were not physically prepared to be separated from their mothers." (Scroll to read on...)

(Photo : pixabay)

The conservationist goes on to argue that export of elephants, especially calves, should be illegal.

Current CITES rulings allow for authorized moves, as the African elephant is categorized under Appendix II, meaning it's not threatened with immediate extinction.

The result is that in the past two decades, 640 African elephants and 424 Asian elephants were exported globally, according to a database kept by CITES.

However, the shipment of the particularly young is viewed as cruel, especially after past CITES investigations revealed that elephants under five years old often do not survive their journey, and remain in poor health even if they do.

"Zimbabwe's actions ignore lessons that have been learned long ago in other countries," Kahumbu presses. "The practice of taking baby elephants, once common in South Africa, was banned there when the results of research in Kenya ... convinced  [authorities] of the horrific psychological suffering and trauma involved."

Distressing News

Fueling the movement to stop the export, the ZCTF discovered just last week that of the 36 captured baby elephants, one has already died of an unknown cause. It's meat was reportedly distributed to locals.

"We are extremely distressed that the elephants haven't even left yet and one has already died. 27 elephants have been medically examined and found to be fit for travel but we don't know what will happen to the other 9," the ZCTF said in an update.

In light of this news, the group recently launched a petition that already has more than 22,600 signatures. A letter was also sent to Sheikh Ahmed bin Saeed Al Maktoum, urging the official to halt the importation of these elephants into the UAE - a letter that boasts the backing of a stunning 152 environmental organizations.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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Hero Tortoise Aids Flipped Friend [Video]

tortoise
With 1.6 million views and counting, you've probably already seen a heartwarming video of one tortoise helping a friend in need at Taipei Zoo. But if you haven't see the viral video, you can check it out here, and also learn how turtles get overturned in the first place. (Photo : Pixabay)

With 1.6 million views and counting, you've probably already seen a heartwarming video of one tortoise helping a friend in need at Taipei Zoo. But if you haven't see the viral video, you can check it out below.

Recorded and uploaded by YouTube user AuDi Yu, this father and nature-lover was able to catch a wild sight at Taipei Zoo in Taiwan back in late November.

"Today my daughter went to the Taipei Zoo to participate in an after-school activity, and we were very lucky to see this turned over tortoise and the smart companion that saved it," the father told the online community (with the help of an online translator).

Yu added that he took the opportunity to tell his daughter that helping others is a joyful thing to do - an important life lesson for any youngster.

And you can certainly hear joy in the video. Only a mere minute long, Yu's video will have you glued to the screen and holding your breath as you watch one big turtle* struggle to help right his overturned friend. Eventually he succeeds, to the obvious elated joy of the schoolchildren gathered around. (Scroll to read on...)

[ Credit: AuDi Yu ]

But how did our tortoise friend get on its back in the first place? According to a 2007 study published in the journal Proceedings of the Royal Society B, most tortoise flippings are not the freak accidents that people think they are. Belligerent males often try to flip opponents over during fights for territorial rights.

Being flipped is a terrifying experience for the loser, as they are then more vulnerable - but they aren't doomed. The study goes on to add that thanks to the geometry of a tortoise shell, the right amount of wiggling and leg flailing will let a tortoise right itself eventually - just hopefully before a hungry predator comes along.

*Before you decided to add your own two cents to the raging "turtle" vs "tortoise" debate occurring in the original video's comments, it should be pointed out that both terms apply. Contrary to popular belief, tortoises are a family of land-dwelling turtles in the order Testudines.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 16, 2014

Wolves Better at Counting Than Dogs

dogs
For canines, considering quantities is an important skill to master when searching for food or determining whether you're outnumbered against a rival pack, for example. And new research shows that wolves are better at counting than dogs, their domesticated counterparts. (Photo : Clever Dog Lab / Vetmeduni Vienna)

For canines, considering quantities is an important skill to master when searching for food or determining whether you're outnumbered against a rival pack, for example. And new research shows that wolves are better at counting than dogs, their domesticated counterparts.

Researchers claim that during the domestication process, dogs lost this ability, making wolves better at discriminating between quantities.

Though this skill can be seen among other social species, like lions, chimpanzees and hyenas, a team from the University of Veterinary Medicine Vienna chose to focus on dogs and wolves. In 2012, researchers Friederike Range and Zsofia Virányi showed that wolves are capable of counting different food quantities, and wanted to see if dogs demonstrated this same intelligence.

During their latest study, they tested 13 crossbreed dogs raised at the Wolf Science Center in Ernstbrunn.

The findings were published in the journal Frontiers in Psychology.

Researchers placed pieces of cheese into two opaque tubes - one on the left and another on the right - and tested the dogs to see which could correctly identify the tube with more cheese. By pressing the correct corresponding buzzer, the animals were rewarded with the cheese from that tube.

"We deliberately performed the test in such a way that the dogs never saw the full quantity of food at once. We showed them the pieces sequentially. This allows us to exclude the possibility that the dogs were basing their decisions on simple factors such as overall volume. The dogs had to mentally represent the number of pieces in a tube," first author Range explained in a statement.

After comparing these results with their previous wolf test from two years ago, the researchers concluded that dogs are unable to tell the difference between two or three pieces of cheese versus four.

"Dogs are better able to discriminate the quantities of food when they can see them in their entirety," Range explained. "But this requires no mental representation."

It's possible, the authors add, that humans can be blamed for the loss of this skill. If dogs can depend on us providing their food rather than having to search for it, then there's no need to count.

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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Horse Genetics: Unveiling the Cost of Domestication

horses
Researchers have recently cracked the code on the modern horse's genomic sequence, unveiling what genes our ancestors were selecting for in these beasts of burden for the last 5,500 years. This work also reveals what kind of genetic variation was lost along the way, leading to the inevitable disappearance of wild horses that we see today. (Photo : Ludovic Orlando)

Researchers have recently cracked the code on the modern horse's genomic sequence, unveiling what genes our ancestors were selecting for in these beasts of burden for the last 5,500 years. This work also reveals what kind of genetic variation was lost along the way, leading to the inevitable disappearance of wild horses that we see today.

There remain some wild horse populations in various places. Europe and North America boast isolated instances of this, but it has long been known that these are rag-tag groups of escaped or released domestics that have returned to the wild - not true wild populations.

The last true team of genetically diverse and undomesticated horses in the world is thought to be the Przewalski's horse population in Mongolia. This group consists of the descendants of a mere 13 individual wild horses who were only able to remain truly wild (ironically) through human intervention and conservation strategies.

A study recently published in the journal Proceeding of the National Academy of Sciences (PNAS) details how experts were able to sequence the genetics of these wild horses and a few of their domestic counterparts. To help aid the comparison, the researchers also worked to asses ancient DNA from wild horse lineages of the past, dating between 16,000 and 43,000 years ago.

By doing so, the team was able to identify a set of 125 specific genes that likely led to the near domestication of horses.

"We provide the most extensive list of gene candidates that have been favored by humans following the domestication of horses," researcher Beth Shapiro explained in a statement. "This list is fascinating as it includes a number of genes involved in the development of muscle and bones. This probably reveals the genes that helped utilizing horses for transportation." (Scroll to read on...)

A man catches a domestic Mongolian horse with a lasso in Khomiin Tal, Mongolia.
(Photo : Ludovic Orlando) A man catches a domestic Mongolian horse with a lasso in Khomiin Tal, Mongolia.

"Perhaps even more exciting as it represents the hallmark of animal domestication, we identify genes controlling animal behavior and the response to fear," added study co-author Ludovic Orlando. "These genes could have been the key for turning wild animals into more docile domesticated forms."

However, this domestication came at a cost. As is seen in dog populations, the extensive domestication of these animals led to a loss in healthy genetic variety, and the inevitable accumulation of invisible "bad genes."

"Mutations that negatively impact genes are not eliminated by selection and can even increase in frequency when populations are small," explained Laurent Excoffie, the group leader at the Swiss Institute for Bioinformatics. "Domestication thus generally comes at a cost, as deleterious mutations can accumulate in the genome. Horses now provide another example of this phenomenon."

For more great nature science stories and general news, please visit our sister site, Headlines and Global News (HNGN).

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December 15, 2014

Exotic Big Cat Meets it's End in Canada

serval
If you're a pet lover with a tender heart you may want to look away. An escaped exotic African cat was unfortunately struck by a vehicle last Sunday night, near Otter Point, Canada. The Animal had been keeping locals on edge after it was spotted in the Sook area earlier this weekend, as it was far larger than your average house cat. (Photo : Flicrk: Sonja Pauen)

If you're a pet lover with a tender heart you may want to look away. An escaped exotic African cat was unfortunately struck by a vehicle last Sunday night, near Otter Point, Canada. The Animal had been keeping locals on edge after it was spotted in the Sook area earlier this weekend, as it was far larger than your average house cat.

That's because the cat in question was a relatively large serval cat - a rare breed of mid-sized African feline that boasts a name that is actually derived from a conjuncture of the Portuguese words for "wolf" and "deer."

And the name is no mistake. The serval is an exceptionally unusual big cat. Smaller than a tiger or leopard, the serval is still much larger than your average house cat, growing up to 3 feet long and more than 2 feet tall. The slender and graceful animal boasts a small tabby-like face and big ears, with its long and powerful legs supporting an up to 40 pound body.

However, compared to most big cats, the serval is considered a clam and easily domesticated animal, with many exotic animal breeders specializing in rearing and training these cats to make stunning (and expensive, at about $8,000) house cats.

The savannah cat, a cross between smaller domestic felines and the serval, is much more common, but it's not illegal to own one of the original African predators in many parts of Canada.

"These are pets - they're very friendly and affectionate cats," Doug Nelson, a Nanaimo cat breeder told the Times Colonist on Monday. "They're a non-aggressive cat, but that changes if they're out and they're scared and they're threatened."

However, according to Don Brown, chief bylaw officer with the Capital Regional District, the serval who unfortunately met its end on a busy road was declawed.

"Kinda shocking when it jumped out in front of the truck!" Peter Henry, the Sook resident who hit the poor animal said on social media before reporting the incident, according to The Province.

Nelson suspects that the deceased cat was the same serval that the SPCA had to retrieve back in August, when it escaped from its home and had to be tracked for several weeks. The breeder added that he sells all his cats with a tracking collar, but these kind of tragedies can still happen if an owner is careless.

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Baby Bottlenose Dolphin Born at Brookfield Zoo

Allison and calf
Just in time for the holidays, the Brookfield Zoo in Chicago received a present early in the form of a baby bottlenose dolphin. (Photo : Brookfield Zoo)

Just in time for the holidays, the Brookfield Zoo in Chicago received a present early in the form of a baby bottlenose dolphin.

The approximately 35- to 40-pound, 3½-foot-long male was born to first-time mom Allison, age 9, around 1:15 p.m. Friday, officials said.

This is the zoo's eighth bottlenose dolphin, and although a dolphin birth is not truly considered successful until the calf reaches a year old, the staff has already witnessed key milestones that show exceptional promise for this young male, including nursing and slipstreaming.

"We are encouraged with the behavior we are seeing from both Allison and the calf," Rita Stacey, curator of marine mammals for the Chicago Zoological Society, said in a news release. "However, we remain cautiously optimistic as the first 30 days are extremely critical in the calf's life."

Earlier this month, another calf died just 10 minutes after his birth, the Chicago Tribune noted.

As for Allison and her calf, the two are happily swimming in the zoo's Seven Seas main habitat, along with three other dolphins: experienced mom Tapeko, 33; Merlin, Tapeko's one-year-old son; and Magic, Merlin's one-year-old half-brother.

"The current grouping mimics what occurs in the wild," Stacey said. "Dolphins are gregarious and form fluid social groupings throughout their lives. Mothers often form groups with other females who help in raising their young. Having successfully raised several calves of her own, including Merlin, Tapeko is a wonderful role model to Allison."

In the wild, bottlenose dolphins are typically found in groups of 2 to 15 individuals, with offshore herds numbering sometimes around several hundred individuals, the NOAA says. Through the Bottlenose Dolphin Breeding Consortium, the Brookfield Zoo, and six other facilities are trying to create an environment akin to that of the wild, via social groupings among 40 dolphins.

The Seven Seas habitat is closed indefinitely to allow Allison and her calf time to bond. Updates can be found on the zoo's website.

Bottlenose dolphins (Tursiops truncates), one of the most recognized species of marine mammals, can be found in temperate and tropical waters around the world.

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