Young Indigenous paddlers have completed the first source-to-sea descent of the Klamath River since the removal of four dams.

Chimps living together at a sanctuary in Zambia began copying each other by wearing blades of grass in their ears . . . and in their butts.

Trail cams in Colorado spotted some new wolf pups. See the cute pups and find out what this means for the state’s wolf population.

Colorado’s Black Canyon of the Gunnison National Park is ablaze thanks to a wildfire on each side of the canyon.