Only 35 Mount Graham squirrels remain in the wild, but five captive squirrels could hold the key to their long-term survival — if we can get them to breed.

A challenge from the reporter who blew the lid off of Thailand’s Tiger Temple and exposed illegal wildlife trafficking from a Buddhist monastery.

The trouble is, almost all animal populations today are facing increasing stress from changing environments.

This month brings us several great new books for the dedicated environmentalists on your holiday shopping list.

A powerful new art exhibit is just one event for this year’s Remembrance Day for Lost Species.

The last 150 birds of this critically endangered species rely on humans for their survival.

The disappearance of a tiny oceanic parasite, researchers warn, indicates that overfishing has caused an ecosystem to fall out of balance.

After decades of stresses, the lesser prairie-chicken faces a brand-new threat: Oklahoma’s wind farms.

This month brings us new books about wildlife trafficking, pesticides and the history of the oceans.

The quest for Bigfoot and other “hidden species” can actually aid real-world species.