Researchers and citizen scientists took samples of environmental DNA from saliva on backyard hummingbird feeders and agave ...

Some animals are so rare, they only exist in a single U.S. state and nowhere else in the world! From isolated islands to remote mountain ranges, these five creatures have found their perfect habitat.

From creatures that look like mythological beings to insects with capabilities that defy understanding, these animals ...

Polar bears are among the planet's most iconic symbols of cold climate adaptation. They boast a thick layer of blubber, ...