An alligator grabbed an employee at a reptile center in Utah by the arm and wouldn’t let her go. Watch the terrifying moment here.

Three hikers died from heat-related illnesses in the Grand Canyon within the span of a week, proving just how deadly extreme heat is.

A teenager survived a terrifying bear attack on a Washington hiking trail. He’s speaking out about the experience.

A Nepali guide survived six days by himself on Mount Everest without food, water, or supplemental oxygen. Here’s how he survived.

A young hiker has died after experiencing symptoms of heat-related illness on the Bright Angel Trail in Grand Canyon National Park.

Officials say they’ve made two arrests in connection with the senseless murders of a married couple last month in Kruger National Park.

Security-camera footage shows a man walking down the street in Japan when a bear began chasing and attacking him. Watch here.

Over Memorial Day weekend, two people—reportedly a married couple—drowned after falling at Roaring River Falls in Kings Canyon National Park.

Two aggressive elk charged a woman who was walking her dog along a lake near Evergreen, Colorado. Watch the encounter here.

A massive, 16,000-pound boulder fell on a climber in Oregon. See photos and videos of the complicated rescue here.