California's beloved condors and sea otters have rebounded from the brink of extinction thanks to the Endangered Species Act.

Some of the rules protecting endangered and threatened species across the U.S. are changing, and a group of attorneys general is trying to stop it. Twenty states and Washington, D.C., filed two ...

President Donald Trump signed an executive order Sept. 4 giving the U.S. secretary of interior 90 days to decide whether to remove Endangered Species Act protections for gray wolves and Mexican ...

US states filed two lawsuits on Wednesday accusing President Donald Trump’s administration of illegally weakening the federal ...

Three Sumatran tiger cubs born at a zoo near Athens are offering hope for one of the world's most endangered big cats.

Two lawsuits seek to reverse the Trump administration’s moves to open the habitats of imperiled wildlife to commercial ...

California is going to court to block the Trump administration's changes to the Endangered Species Act. The 50-year-old law, ...

Should we bring back extinct animals? Wrong question. Why are we bringing back extinct animals when we have animals, plants, and fungi that are going extinct now, daily? By 2050, up to half of all ...

The "Carnival of the Nearly Extinct Animals," a live music and dance show raising awareness for endangered species, comes to ...

With their slender bodies and long front legs, Miracinonyx trumani—often nicknamed the "American cheetah"—was long thought to be a North American analog of the African big cat. But in a new study ...

Females with more potential mates can produce offspring with fewer harmful mutations, helping populations become more ...