The major U.S. Fish and Wildlife Service’s proposal would declare the iconic species as threatened, with federal scientists ...

The genome of a once-endangered songbird shows extensive signs of inbreeding, according to a new study by Penn State ...

The Endangered Species Act of 1973 created two distinct lists for protection. Species in imminent danger of extinction throughout all or most of their range were to be listed as “endangered,” and ...

The United States is moving to grant federal protections to the monarch butterfly -- a once-common species recognizable by ...

Hellbenders are the largest salamanders in North America and can grow up to 29 inches, according to the U.S. Fish and Wildlife Service.

The incoming Trump administration and congressional Republicans are expected to revise Endangered Species Act regs and eye ...

Marine invertebrates, however, don't often get the same attention — and researchers are working to change that. Giant clams ...

After a decade of advocacy, the species could now qualify for federal protections under the Endangered Species Act.

The Endangered Species Act, enacted in 1973, establishes protections for fish, wildlife and plants that are listed as threatened or endangered. Under the act, federal agencies are required to ...

The federal government has proposed listing the monarch butterfly as threatened under the Endangered Species Act, a step ...