A thru-hiker came across a mountain lion on the trail and used an unconventional tool to scare it off: a harmonica. Watch here.

There isn’t supposed to be a mountain lion on Oahu (or anywhere on Hawaii), and yet, one man’s photos make a convincing case. See here.

A group of photographers became key players in a nature scene when a puma briefly used them to hide from its prey, a guanaco. Watch here.

“For the first time in more than 100 years, cougar cubs have been discovered living in the Michigan wild.” See the cubs here.

Wildlife photographers experienced a “special moment in Yellowstone” when they spotted a pair of cougars walking along a snowy ridge line.

There are pumas, and then there are “gangsta” pumas. This gangsta puma looks like he doesn’t put up with anything from anyone.

Relaxing in a hot tub is usually a carefree experience, but not for this family. A cougar was watching them at really close range.

A young puma saw its reflection in some water in the Guatemalan jungle, and it didn’t like what it saw at all. Watch here.

A rare visitor Voyageurs National Park passed by a trail cam earlier this week. The “big kitty”—a cougar—is a rare sight in Minnesota.

A video showing a cougar with blood-matted fur snarling at a glass door has gone viral. The animal stalked the family after killing their cat.