Tipsy zebra finches slur their songs and high spiders spin asymmetrical webs.

And babies, and stuffed animals …

A mysterious wildcat in Sri Lanka may hold a clue.

Are we trying to save animals in the wrong places?

Bighorn sheep and moose learn to migrate from one another. When they die, that generational know-how is not easily replaced.

A legal case involving a famous solitary elephant poses a fundamental question about animals’ rights.

Inside a California sanctuary for retired performance animals and rescued illegal pets

Humans regularly give our pets and livestock shots. Now scientists are turning to immunization as a last resort for endangered species.