Yellowstone/Northern Rockies

Wyoming's Wolves Are Fighting to Survive.

The world-famous wolves, buffalo and grizzly bears of Greater Yellowstone are threatened by development, habitat loss and — in the case of wolves — widespread killing.

What's at Stake

Yellowstone National Park is the crown jewel of our national park system. But its treasured wildlife face many threats. Congress has stripped wolves in Montana and Idaho of their endangered species protection, leaving them at the mercy of state plans that are already killing hundreds of them.

The endangered grizzly bear population is imperiled by logging, mining, oil and gas drilling and other industrial activities. And each winter and spring, many of Yellowstone’s wild buffalo — formally known as bison — are “hazed” and sometimes slaughtered by government agents as the animals wander out of the park in search of food and calving areas.