U.S. moves to protect wolverines as climate change melts their mountain refuges
Only 51 of these U.S. whales remain. Little has been done to prevent their extinction
Why cheetahs will be especially vulnerable to climate change, according to new research
A rare Mexican gray wolf is wandering out of bounds. She may be looking for a mate
Mosquitoes are driving these birds to extinction. With only 5 left in the wild, scientists are racing to save the species