2
POPSNew way to make stem cells is safe Hochedlinger's team used a much more harmless virus, called an adenovirus, to carry into the cells the four transformative genes, called Oct4, Sox2, Klf4 and c-Myc. They used mouse skin cells and also liver cells from fetal mice and got both types to look and act like iPS cells As the cells divide, they dilute the virus until it disappears, he said. But the genetic changes remain. To test the cells they made chimeras --- a blend of two separate animals. They injected their newly made cells into mouse embryos and when the pups were born, they carried visible evidence that the cells had indeed transformed them And so far, these chimeric mice have not developed any tumors If it works, some day doctors may be able to make tailor-made transplants to treat diseases in people by removing a few cells, transforming them in the lab and transplanting the new tissue or organs back in
3
POPSAlaska is Killing Wolves- Arial Hunt Just in time for the announcement of Alaska Gov. Sarah Palin, we find out how bad she is willing to be. Environmental considerations none! She stands to the right of Bush, if one can imagine that.
0
POPSpeoples ignorance yes this makes me so mad too! all these dogs die because people can't be bothered to get their pet spayed!
6
POPSAre Meerkats Naturally Altruistic?
For centuries, there's been a debate over whether true altruism exists among humans. Helping others at our detriment is risky behavior, evolutionarily speaking. Say you're overcome with an urge to give your last piece of bread to someone else. The other person eats, but you don't. Ultimately, after enough of these selfless acts, you'll starve and die, and your dangerous habit of helping others should die along with you. In the animal kingdom, altruism poses an equally prickly problem to explain. Why some animals exhibit generosity is a real mystery to biologists. It's not like they're thinking about the tax write-off they can get by donating money. Meerkats have one of the most cooperative societies in the animal kingdom. These African desert dwellers are perfect subjects for an investigation into altruism. For one, they live in a harsh habitat, quite a long way from easy street. Danger lurks around every corner because they sit at the bottom of the food chain.
0
POPSTAMARA 3 WOLF PUPS LOOK FORWARD WITH SUCH KINSHIP AND CONFIDENCE !
6
POPS 'Polars Bears On The Brink? Don't You Believe It' ANIMAL PLANET TV SPECIAL 12/08 - 01/08 FIVE PARTS Arctic Exposure with Nigel Marven New Life of Spring TV-G Nigel Marven starts his quest to follow wildlife over a nine month period in the Canadian Arctic while exploring their unique environs. In Wapusk National Park, Nigel witnesses the jaw-dropping majesty of the Northern Lights in -30 degree weather. Arctic Exposure with Nigel Marven The Thaw Begins TV-G Nigel Marven continues his Canadian Arctic journey into summer. The first polar bears of summer come ashore and Nigel encounters one swimming at sea. Near Cambridge Bay, he witnesses a breathtaking wolf attack on a musk ox herd. New Life of Spring The Thaw Begins High Summer Return of the Ice The Journey Ends
2
Pops
Newest Clips
Latest Comments
Most Pops
Print
Save
Turn on live update