A new study near Yellowstone shows mountain lion kills fertilize soil, encouraging plant growth that brings in potential new prey.

A mountain lion was spotted in Missouri, marking an infrequent sighting of the animal, officials say. The Missouri Department of Conservation said Sept. 12 photos show a mountain lion killing an ...

Idaho Fish and Game said the decision to euthanize was due to the mountain lion entering a yard and killing a pet.

A mountain lion attacked two brothers on Saturday, wounding one and killing the other.

The attack in El Dorado County is believed to be the first fatal incident involving a mountain lion in California in 20 years.

Mountain lions are elusive, looking for food, and more likely to attack if you’re moving. What’s a cyclist to do? Mountain lion attacks remain almost surprisingly rare, but two recent dramatic ...

Mountain lions have gone on a pet-killing spree in Grandy County, Colorado, with 16 pets reported dead by locals. The attacks began on January 15, when a mountain lion attacked 15 cats in ...

A mountain lion attacked and killed a Los Angeles resident’s pet chihuahua on an evening walk in the Hollywood Hills, according to KTLA.

It has camera traps set up all over the Wasatch Front, which monitor everything from mountain lion dens to prey kill sites and suspected traffic areas for lions.

Idaho Fish and Game said the decision to euthanize was due to the mountain lion entering a yard and killing a pet.

How common are mountain lions in Missouri? One was spotted killing an elk in Shannon County. There have been 13 sightings this year.