The Rocky Mountain Biological Laboratory is hosting its first-ever Fat Marmot Week to help raise awareness about these alpine rodents.

A visitor to Death Valley National Park died after his vehicle became stuck in mud and he attempted to walk in extreme heat to get help.

A father in Japan abandoned his seven-year-old son partway up Mount Fuji so that he could summit the peak with his other child.

Santa Clara County rangers give hikers advice about what to do and what not to do if they see a cougar on the trail. Watch here.

A drone pilot recently captured a rare visitor off the coast of southern California—a hammerhead shark. See it here.

Rangers received a bizarre call about a random llama roaming around the El Corte de Madera Open Space Preserve in California.

A family tent camping in Yellowstone National Park endured a night of eerie howling, keeping them up and little scared. Listen here.

A family didn’t know what was coming when they spotted a shelf cloud moving ominously toward them in the sky. See it here.

A group of young men driving through Yosemite spot a bear in the woods to the side of the road, and they lose their minds (in a good way).

PSA for hikers—not all chirps you hear in the wilderness come from birds. Mountain lions also make a chirping sound. Listen here.