Originally published on Mon January 27, 2014 11:36 am
Our four-legged friends suffer from many of the same cancers that we do. But one type of dog tumor acts like no other: It's contagious.
The tumor spreads from one pooch to another when the dogs have sex or even just touch or lick each other.
"It's a common disease in street dogs all around the world," says geneticist Elizabeth Murchison at the University of Cambridge. "People in the U.S. and U.K. haven't heard of it because it's found mostly in free-roaming dogs in developing countries."
Originally published on Fri January 24, 2014 7:11 am
When it comes to tackling obesity, eating right and staying active are usually the way to go. But a research team in the Netherlands says there's an environmental factor that might help and that is often overlooked: the cold.
We're not talking bone-chilling temperatures that'll make you shiver endlessly, but a milder cold between 62 and 77 degrees.
There are more than a thousand species of sharks and rays in the world, and nearly a quarter of them are threatened with extinction, according to a new study. That means these ancient types of fish are among the most endangered animals in the world.