Scientists at the American Museum of Natural History investigated old specimens that had been at the museum for decades and ...

There are many types of penguins, a family of flightless aquatic birds that live primarily in the Southern Hemisphere. Read ...

A popular idea suggests a link between big brains and a rich social life, but octopuses don't fit the pattern, which suggests ...

The Fish and Wildlife Service has been chronically slow to protect animals and plants under the Endangered Species Act, ...