For the first time, federal biologists are assessing whether illegal marijuana gardens in the back woods of the West could threaten the extinction of a wild animal.

The critter that inspired "The Adventures of Peter Cottontail" and the enduring song that came later faces an uncertain future. Its natural habitat is disappearing, and without intervention, it could be unhappy trails for the once-bountiful bunny.

Aialik, a 14-year-old northern sea otter, was euthanized on Wednesday. He had a failing urinary tract that had caused him problems for much of his life and his condition had recently worsened.

BANGKOK (AP) — Conservationists say there's a new threat to the survival of Africa's endangered elephants that may be just as deadly as poachers' bullets: the black-market trade of ivory in cyberspace.

Illegal tusks are being bought and...

Western snowy plovers - those little birds that scoot along the sand at the coast - will begin nesting soon and that means you'll need to steer clear and give them some space.

In an agreement finalized Friday, the Oregon Zoo assumed legal ownership of Rose-Tu’s new calf from Have Trunk Will Travel, the California-based company that had previously held rights to the young elephant.

The U.S. Fish and Wildlife Service on Wednesday released its final recovery plan for the endangered Columbia Basin pygmy rabbit.

Seven federal fisheries scientists filed a complaint Monday claiming their supervisor censored their research into the water needs of threatened Klamath Basin salmon because it was viewed by others as biased.

A track found in the northwest corner of the Wallowa-Whitman National Forest is the latest evidence biologists have of wolverines in Oregon.