High in northern Peru, three frogs no bigger than a thumbprint have stepped out of anonymity and into the scientific ...

Teeming with species of various shapes and sizes, including crayfish, trout, whirligig beetles and hellgrammites, as well as leopard frogs, shiners and steelhead, the Grand River is one of the ...

Chimpanzees have been observed following “fashion trends” in the same way humans might do, research has revealed. Eight ...

Social-media users revealed which pets they'd never own again—and the answers are surprisingly emotional, messy, and honest.