A homeowner spotted one of the most endangered mammals in the U.S., a Florida panther, crossing through his backyard in Naples, Florida.

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

A mountain lion got stuck in the courtyard of a southern Arizona hospital, and it wasn’t happy to be there. Here’s what happened.

Did a mountain lion attack a 19-year-old dirt biker last week? Officials say it was a house cat, but the teen says no way.

Have you ever seen a mountain lion on an iceberg? A wildlife photographer took some stunning photos of a cougar in an unlikely place.

Somewhere in this photo, there’s a mountain lion stalking the elk that’s hunched over in the foreground. Can you find it?

A cougar came within a few feet of the mother and daughter and their puppy in a Monroe, Washington backyard. Watch it go down.

A Woodland Hills. California resident got a surprise last week when she discovered a mountain lion in her avocado tree.

A resident of Livermore, Colorado shares a video to X showing a mountain lion dragging its prey right through her backyard.