Endangered Species

Tracking British Columbia's secretive sea wolf

Glowing sea turtle is the first biofluorescent reptile ever found

Colorful 'ghost' bird finally caught in photos

Rare snubfin dolphin photographed in Australia

Baiji dolphins resurrected as soaring driftwood skeletons

5 startling statistics about rhinos

Which U.S. states have the most endangered species? [Infographic]

How a zoo teaches endangered birds about 'stranger danger' in the wild

How sheep-guarding dogs are protecting Australia's endangered bandicoot

Watch a chimp use a tool to knock down a drone

12 surprising flightless birds

This guy is walking 1,800 miles across Madagascar to look for an elusive lemur

Freaks of Nature

Stories You Won't Believe