A man is missing in Colorado, and he was last seen in Rocky Mountain National Park. The park is asking for help finding Blake Kieckhafer.

A college student was sitting on a bench reading in Arcata Community Forest when a mountain lion suddenly appeared. Watch here.

Health officials have found not one or two but four “rare” and “exotic” tick species in this U.S. state. Learn how to protect yourself.

A month after a young American hiker went solo into the Pyrenees, authorities found his body in Ordesa y Monte Perdido National Park.

“In the realm of the white whale it’s easy for even a sea bear to feel out of place.” Watch a polar bear swim amongst a pod of belugas.

A solo hiker went missing in Norway for nearly a week. He survived after a clue that his wife found helped search crews locate him.

Wildlife officials found two female Florida panther kittens, both just 3.5 months old, dead near a highway in Collier County, Florida.

In Røros, Norway, a moose came running down a street at full speed, much to the delight of the people who witnessed it.

A frightfully venomous Eastern brown snake dropped in at a skate park in Australia. Watch what happens here.

A mountain lion attacked an 11-year-old girl on Sunday while she was outside her home in Malibu, California. Learn more.