A 600-pound elk charged a family with young kids at the Grand Canyon, knocking a man to the ground in the process.

Yesterday, Mount Lewotobi Laki Laki in Indonesia erupted twice, creating an 11-mile-high cloud of volcanic ash and debris.

Conservationists are excited about new trail-cam video from Thailand’s Khao Luang National Park that shows a rare “fire tiger” in the forest.

A man’s Chihuahua saved his life after his was hiking with his dog late last week and fell into a glacier crevasse in Switzerland.

A series of trail cam videos show a mama moose and her calf trotting through woods and streams near Anchorage, Alaska. Watch here.