The world's only known albino orangutan climbed trees, foraged for food and began building a nest after being released into a remote Borneo jungle more than a year after conservation officials found her starving and dehydrated in an Indonesian village

Environmental groups have filed notice they intend to sue the U.S. government for letting hunters use bait to lure bears in national forests in Idaho and Wyoming.

American conservationist Kristine Tompkins says the creation of Argentina's first marine national parks is a milestone that gets it close to meeting its U.N. recommended goal for 2020

A Yosemite National Park official says two visitors have died in a fall from a popular overlook

Officials plan to relocate several gray wolves from the Canadian province of Ontario to Isle Royale National Park this winter

A Yosemite National Park official says a visitor reported Wednesday that two people had fallen to their deaths from a popular overlook

The National Park Service says it will reassign the Grand Canyon superintendent amid a federal investigation into undisclosed allegations

Authorities are trying to figure out what led to the deaths of a young couple in the Grand Canyon

A grizzly bear attacked an elk hunter who surprised the sow and her cub north of Yellowstone National Park

The lack of historical markers and preserved historical sites connected to Latino civil rights worries scholars who feel the scarcity is affecting how Americans see Hispanics in U.S. history