The Milwaukee Zoo mourns the loss of Patti, the oldest hippo in U.S. zoos, who was known for her spirited personality.

In an experiment with great tits ( Parus major ), a team of scientists found that when the birds move to a new environment, ...

Behind the scenes at a Chicago zoo, chimpanzees who spent years entertaining humans are learning to befriend their own kind.

The enormous organism is bigger than a blue whale and made up of millions of genetically identical, tiny animals called ...

The California Insurance Department said four Los Angeles residents were arrested Wednesday, accused of defrauding three insurance companies out of nearly $142,000 by claiming a bear had caused damage ...

A California teenager has admitted to making hundreds of swatting calls — hoax emergency calls — over a two-year period, ...