Colossal Biosciences' chief scientist has clarified that its "dire wolves" are just genetically modified gray wolves ...

Sloth size and habitat shifted multiple times over the past 35 million years, but human hunting likely drove the slower, ...

Researchers have recovered Homo erectus bones from the seafloor, which points to an unknown hominin population hunting on ...

"Dire wolves" created by Colossal Biosciences were pegged as "the first animals in history to be brought back from extinction ...

A new study, published on May 21 in the journal Nature, has revealed surprising information about the origins of human teeth.

The heath hen once fluttered across the eastern U.S. in huge numbers. By the late 1800s, however, it had retreated to ...

The northern white rhinoceros is one of the rarest animals on Earth, with just two females left and no natural way for the ...

"De-extinction" takes center stage as environmentalists express dismay over erosion of the Endangered Species Act ...

The snowy owl, Quebec's majestic avian emblem and Harry Potter's iconic companion, is at risk of becoming endangered if ...

A proposed change in the interpretation of "harm" would degrade the power of the law that protects plants and animals from ...

A California federal court struck down an attempt from the U.S. Fish and Wildlife Service to revoke protections for the ...