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

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.

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.