There is a limit on how many times a mammal can be cloned before suffering "mutational meltdown," Japanese scientists have ...

Platypuses are true oddballs. They look like a mish-mash of several animals, with duck-like bills, beaver-like tails and ...

Scientists have pushed the limits of mammal cloning until the whole house of cards has come tumbling down. After two decades ...

You already know the platypus is strange. It's the animal that lays eggs, has a duck bill, shoots venom from its ankles, and ...

The national mammal of the United States is getting in on America's 250th birthday celebration. Three bison statues cast in ...

Over the long and complicated course of evolutionary history, mammals independently turned towards water to make a home ...

Sea lions returned to the wild Friday morning off Redondo Beach, a hopeful moment on the surface. But the ocean they’re ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza ...

The Marine Mammal Center received multiple reports of a northern elephant seal pup on two different Santa Cruz beaches ...

The world's oldest known mammal has been identified using dental records – predating what scientists previously thought was the first mammal to walk the Earth by millions of years – according to new ...

Starting April 1, Massachusetts health care providers and labs will be required to alert the state when they encounter cases ...

Following news this week of a southern sea otter's death from avian flu, experts are now saying the disease's outbreak has ...