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.

A whole family of mountain lions cruised through a backyard in California. Watch the home-security camera footage here.

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

Yesterday afternoon, officials in Ashland, Oregon shot an “aggressive” mountain lion in a residential backyard.

Three mountain lions went prowling in broad daylight outside a cabin near South Dakota’s Black Hills. Watch it here.

Wildlife cameras captured video footage of a puma crossing safely beneath Highway 17 in Santa Cruz County, California for the first time.