Ancient skin pigments reveal that many turtles and "sea monsters" sported dark colors for tens of millions of years, a new study says.

National Geographic helped the famous conservationist get her start—and followed her chimpanzee research and advocacy for wildlife in a career that forever changed how we understand animal behavior.

ORLANDO, Fla. -- National Geographic's 'Underdogs, narrated by Ryan Reynolds, is shining the spotlight on some of the misfits of the animal kingdom to finally give them the recognition they deserve.