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

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 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.

A clever black bear was determined to get some human snacks in California’s Lake Tahoe. Watch it go down here.

Fishermen in New Jersey had a close call when a massive whale lunged out of the water to catch some fish and nearly smashed them.

See a funny photo bomb from a couple of endangered birds—California condors—on a remote camera in California.