The Bitterroot Ecosystem has no known resident grizzlies, but wildlife managers have confirmed the presence of bears roaming through the 44,000-square-mile landscape.

President Donald Trump’s administration is proposing to alter the meaning of the Endangered Species Act. Environmental groups ...

In a landmark shift, a new study has found that climate change is now the most pervasive human-caused threat to imperiled ...

Most ranchers understand that people can coexist with this long-missing, ecologically valuable native species.” ...

Invasive crayfish introduced by the National Park Service 100 years ago are decimating a newt subspecies in the isolated ...

A Meeteetse, Wyoming, ranch dog can be credited (sort of) with the revival of this highly specialized weasel-like mammal.

Hundreds of species need wetlands to breed, forage and rest. When wetlands are destroyed, birds are usually the first to noticeably die off.

A proposed U.S. Fish and Wildlife Service rule would allow activities that harm the habitats of protected species.

A Texas man was sentenced to prison for smuggling six baby Mexican spider monkeys into the United States, prosecutors announced on Monday.

The United States Fish and Wildlife Service and the National Marine Fisheries Service (collectively, “Service”) is proposing to rescind the regulatory definition of “harm” in the Endangered Species ...

This is Part 1 of a two-part series on fisheries management and ocean governance under the second Trump administration, which ...

The bald eagle might be the national bird of the United States, but it is decidedly not a bird you want going face-to-face with your dog.