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Dogs and robots, the ideal search and rescue team (VIDEO)

Dogs equipped with "snake-like" robots could one day carry out search and rescue operations.
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German Shepherd Freitag demonstrates the Canine Assisted Robot Deployment system. (Carnegie Mellon University/YouTube)

Scientists have come up with a new search and rescue team: dogs and robots.

And not just any robots: snakebots. Inspired by the movement of real snakes, the long, thin robots are equipped with a camera and programed to "wriggle" their way toward disaster victims, explained Innovation News Daily.

While the technology has been around for a while, what's new is that the search snakes are now being teamed with real live dogs.

It's an ideal pairing, according to IEEE Spectrum: the dog, with its keen sense of smell and running ability, detects the person trapped underground or in rubble, approaches as close as it safely can, then drops off the snakebot to slither in and take a closer look – which can then be relayed to human rescuers further away.

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New Year's Eve: Dutch giraffes soothed by pop music

Dutch obsession with New Year's Eve fireworks rattles giraffes at Netherlands zoo; only pop music can calm the animals.
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Unlike the urban giraffes of the Netherlands, this family of wild giraffes in Africa is not forced to listen to pop music in order to mask the terrifying sounds of New Year's Eve fireworks. (Jacqui Deelstra/GlobalPost)

It's New Year's Eve at the zoo, your neighbors are going crazy with fireworks, and the giraffes are spooked. What do you do?

At Amersfoort Animal Park in the Netherlands, staff tune into Radio 2, a public radio station that plays pop music, and crank up the volume.

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Twin polar bear cubs to debut in China (VIDEO)

Sometimes it's hard to understand why we don't all quit our jobs to play with polar bear babies.
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Twin polar bear cubs prepare to make their debut in China this weekend. (Screengrab)

There is little in life that is cuter than a polar bear cub. And in this video, there isn't just one, but two polar bear cubs. Can we say perfection?

The cubs are getting ready to make their first public debut this weekend at the Dalian Laohutan Pole Aquarium in northeast China's Liaoning Province.

Here at GlobalPost, we are sorely disappointed that we won't be able to see them in person. Instead, we invite you to take a moment during this quiet holiday week and watch them with us from afar. Thank goodness for the Internet.

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Elephant 'sixth toe' discovered to help mammal's stance

A sixth toe was discovered on the elephant to help the world's largest mammal keep its balance.
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A new study shows elephants have a sixth toe, which helps them keep their balance. (WILLIAM WEST/AFP/Getty Images)

What helps the elephant, the world’s heaviest land mammal, keep its balance and have good posture? A tiny, bony sixth toe.

According to a new study by the US journal Science, the growth protruding from the back of an elephant's foot is actually a sixth toe, the AFP reported. It was discovered in the 18th century by a Scottish surgeon who dissected an elephant for the first time. It has been a mystery until now.

Read more at GlobalPost: Top 10 Animal Stories of 2011

Over the course of 15 million years, elephants evolved a false sixth tie in the middle of the fatty pad on each foot to prop up the back of their feet and support their tiptoed stance, The New York Times reported.

“About 55 million years ago, the earliest elephants were flat-footed,” said John Hutchinson, a biologist at the Royal Veterinary College in London and the first author of a study in the journal Science that reports the findings, The Times reported. Early elephants were very small, just about the size of a pig, and their feet “probably did not have space for the large fatty pad elephants have now,” The Times reported.

Read more at GlobalPost: Woolly mammoths to be cloned by Russian and Japanese scientists

In recent years, many people thought the structure was just a huge lump of cartilage.

"Anyone who has studied elephants' feet has wondered about it. They've thought: 'Huh, that's weird,' and then moved on," Hutchinson said, the BBC reported.

Through a combination of CT scans, histology, dissection and electron microscopy, Hutchinson and his team of researchers concluded it was a sixth toe. It also revealed that it showed a strong similarity to an unusual bone found in the front feet of pandas, the BBC reported. The bone isn’t exactly an extra piggy, but it serves the same purpose on pandas, helping them to grip bamboo.

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South Africa: Rhino horns poisoned to thwart poachers

The owner of an exotic game reserve near Cape Town, South Africa has injected his rhinos' horns with poison to try and prevent poaching.
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A white rhino at the Rietvlei Nature Reserve near Pretoria, South Africa. After two of the reserve's rhinos were killed by poachers, rangers decided to de-horn the remaining animals, a drastic measure to try and prevent future poaching. (Erin Conway-Smith/GlobalPost)

JOHANNESBURG, South Africa — The owner of an exotic game reserve in South Africa is taking a drastic step to prevent rhino poaching: he has injected his rhinos' horns with poison.

Damian Vergnaud, owner of Inverdoorn reserve near Cape Town, said he approached scientists and a vet to work towards finding a substance that would deter poachers.

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Botswana Wildlife

Hungry polar bear kills and eats a cub

Polar bears normally hunt seals, but some don't have that option thanks to -- yes, you guessed it -- climate change and a loss of sea ice.
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Earlier studies have shown that polar bears are swimming hundreds of miles to reach solid ice or land, but a new study demonstrates that the longer swims increase cub mortality. (Bill Pugliano/Getty Images)

An environmental photographer has managed to capture an image of a large, adult polar bear dragging the body of a bloody cub across the Arctic ice. The polar bear has used its teeth to grab the cub, which it presumably just killed, at the scruff of its neck.

Polar bears normally eat seals, but they have had to resort to other options because climate change has left them with less sea ice and therefore less available space or platforms on which to hunt for seals, the photographer, Jenny Ross, told scientists gathered at the 2011 American Geophysical Union (AGU) Fall Meeting, as reported by the BBC.

Observers have long known that adult male polar bears sometimes prey on cubs or females, however, Ross's report states that the warming temperatures may be causing this to happen more often, MSNBC reported.

The bears have been left with no choice but to eat human garbage and human foods, seabirds and their eggs and in some cases, young and vulnerable polar bear cubs.

"This type of intraspecific predation has always occurred to some extent," she told BBC News.

"However, there are increasing numbers of observations of it occurring, particularly on land where polar bears are trapped ashore, completely food-deprived for extended periods of time due to the loss of sea ice as a result of climate change.

In other polar bear news, a Canadian senator campaigned last month to have the polar bear replace the beaver as the country's national emblem.

"A country's symbols are not constant and can change over time," Nicole Eaton, a Canadian senator and Conservative party member, told Reuters. 

"The polar bear, with its strength, courage, resourcefulness and dignity is perfect for the part."

More from GlobalPost: Polar bear fights to be Canada's national emblem

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