How does a sloth say 'Thank you'?

Get face to face with wild African lions

5 things you didn't know about the weirdly majestic basking shark

Jim Fowler of 'Wild Kingdom' dies at 89

Walk between the Smokies on North America's longest pedestrian suspension bridge

Did you miss the Eta Aquarid meteor shower? Problem solved

Momma bear shows cubs how to cross the road

When 200 uninvited sheep come over to visit

Canadian firefighter rescues cougar from tree

What would Earth look like if all the ice melted?

Drone reveals 'extinct' Hawaiian flower growing on remote cliff

Brazilian river dolphins are much more social than we thought, biologists find