Twilight for Sea Stars?
Scientists may have finally discovered what is killing millions of these keystone marine predators.
The U.S. National Park Service celebrates more than a century of conservation—and struggles to sustain its mission.
Ways Animals Beat the Heat
From birds to amphibians to humans, animals have developed strategies for keeping cool in hot weather.
An entomologist and photographer hopes to inspire love of his favorite subjects.
What is This?
Test your wildlife knowledge. Can you guess what animal this is?