A young black bear cub mercilessly ambushes its sibling at a watering hole in this funny trail-camera footage.

Research confirms a mountain lion that struggled to stand and walk had the fatal staggering disease. It’s the first case in North America.

A bear tried to steal a man’s backyard bird feeder in Maine this week. The resulting video footage is quite funny.

A river guide came across something she didn’t expect to see in the Yellowstone River earlier this week—a headless, pawless grizzly bear.

Kansas biologists were searching for a rare, tiny snake called the New Mexico threadsnake when they found one in a surprising place.

Cross river gorillas are extremely rare, with only about 300 of them left in the wild. Check out this exciting new trail-cam footage.

A pair of grizzly bears love their clawfoot tub, and they lounge in it every chance they get. Watch the hilarious footage here.

No one’s ever seen a boat strike a basking shark from the shark’s point of view, until now. Watch footage from a camera mounted on the shark.

A trio of field biologists heard some eerie vocalizations. Turns out, it was a mountain lion. Hear what sound a mountain lion makes here.

A large baleen whale capsized a 23-foot-long fishing boat with two men onboard, and the video is going viral. See it here.