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

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

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

Monarch butterflies are familiar sights to many Oklahomans because of their yearly migration through the state in the fall ...

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

As NOAA Fisheries explains, “The Endangered Species Act of 1973 provides a framework to conserve and protect endangered and threatened species and their habitats both domestically and abroad.” ...

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

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