Study Suggests Italy's Brown Bears Became Less Aggressive Over Time Because of Humans ...

Joy—fleeting woo-hoo moments like "catching the perfect wave"—is felt by many diverse animals, and researchers want to know how they express it in various situations and why.

This video examines five freshwater fish species with the physical ability to seriously injure or kill humans. Each segment ...

Most people first notice pill bugs while lifting a flowerpot or turning over a log, then watching small gray roly polies curl ...

Animal survival depends on effective attack and defense strategies, yet how these behaviors arise remains unclear. Addressing ...

Climate change has a wide range of effects on wildlife. It affects seasonal migration, reproduction times, body size and mass ...

Of all the marvels of the natural world, few are as astonishing as the common swift (Apus apus). These small birds spend ...

There are few things more joyful, if occasionally nerve-wracking, than having a pet in your home. And plenty of people agree.

Every year, researchers and people out in nature capture some aspect of animal behavior that’s unusual or unexpected in some way, changing how we understand the natural world. For the first time, ...

DENVER — Winter is hard, and for wildlife in Colorado, it’s even harder. To survive, many species have developed adaptations over hundreds of thousands of years that allow them to weather the storms, ...

A small study reveals that cats greet male owners more vocally than female ones. But the findings could be a result of cultural norms among the participants, rather than a universal cat behavior, ...