Video shows a California woman coming face-to-face with a mountain lion during a hike. NBC News' Marissa Parra has more on ...

A mountain lion that attacked a 5-year-old boy at a Southern California park over the weekend was euthanized by state rangers, officials said on Tuesday.

A baby mountain lion in California apparently needed a cat nap, as one was spotted lounging on a tree tree branch in a residential area.

A 5-year-old boy is recovering from his injuries after a terrifying mountain lion attack at Malibu Creek State Park in the Santa Monica Mountains on Sunday afternoon. The toddler and his family ...

A resident found a baby mountain lion all alone in California, and wildlife officials couldn’t find its mom for days. So a zoo took the little cub in. Screen grab from Oakland Zoo's video on ...

Three orphaned mountain lion cubs are in the care of the Oakland Zoo's veterinary hospital after rescuers found the wild animals alone several weeks after the death of the cubs' mother. The baby ...

Two mountain lion cubs have been photographed in Michigan, a state where the big cats were hunted to near extinction and their young haven’t been seen in the wild in over 100 years.

Everybody knew the mountain lions were around, but back then daytime sightings were rare. We would sometimes hear a lion scream in the dusk, a bloodcurdling sound, in the canyon behind our house.

The sighting of a possible mountain lion in the city of Rochester has created quite a stir. But with all the excitement, some ...

3rd mountain lion sighting in North Texas has residents concerned COLLIN COUNTY — A Plano alleyway camera is the latest place to see a mountain lion that's believed to be the same one spotted in ...

A mountain lion attacked a 5-year-old boy during a family picnic over the holiday weekend in Los Angeles County, according to state wildlife officials.A family of at least six adults and a few ...