The Obama administration is designating three new national monuments honoring civil rights history to commemorate Martin Luther King Jr. Day

Grizzly bears once roamed the rugged landscape of the North Cascades in Washington state but few have been sighted in recent decades

A deluge of opposition from dozens of American Indian tribes, conservation groups and some scientists is tying up a decision on lifting protections for more than 700 grizzly bears in and around Yellowstone National Park

Correction: Bundy Land Protest story

A French tourist who tried to have her picture taken with a crocodile in Thailand was injured when the reptile snapped at her when she got too close

President Barack Obama expanded his environmental legacy with final day designations of national monuments on lands in Utah and Nevada that have become key flashpoints over use of public land in the U.S. West

President Barack Obama has designated two new national monuments in Utah and Nevada at sites that have become key flashpoints over public land in the U.S. West

Officials at Mount Rainier National Park south of Seattle are considering proposals by two carriers to provide cellular service inside the park

Amid population declines for many wildlife species in Africa, conservationists are sounding alarm bells for the cheetah, the fastest animal on land