A mystery marine animal bit a man swimming in the Foster City Lagoon, a 6-foot deep drainage retention basin in the San Francisco Bay area.

Two grizzly-bear cubs clung to a so-called “nanny tree” as their mom went fishing in the river down below. Watch here.

A woman celebrating her 90th birthday decided to jump out of a plane to celebrate. Watch the footage here.

American speed climber Emma Hunt recently broke a world record for women’s speed climbing. Watch her incredible climb here.

Funny footage shows a slew of sea lions sliding down an abandoned lighthouse’s stairs, proving it’s now a wildlife playground.

Mesmerizing drone footage shows a tornado forming over a lake in Canada this past weekend—with a rainbow in the background for good measure.

A moose walked over a fence and across a lawn in Jackson Hole, Wyoming. It took some people 3-5 business days to move.

A surfer recently shared epic footage of a barrel wave he caught off the coast of South Australia, featuring several dolphins. Watch here.

According to a new study, The Narrows in Utah’s Zion National Park is the U.S.’s most beautiful hike, and it ranks sixth in the world.

The man who filmed the viral bison attack in Yellowstone National Park is speaking out. The victim was no “touron,” he says.