A new bill targets a predator some Arizona ranchers say is killing their livelihood as well as their livestock.

The predator was once widely seen in forested areas. Habitat loss, lack of prey and poaching are key contributors to the loss ...

After the only known Mexican wolves were removed from Cochise County, calls for the species to be removed from federal ...

PHOENIX — The U.S. Fish and Wildlife Service proposed stripping the Gila chub of its Endangered Species Act protections on Monday. However, the Center for Biological Diversity opposes the ...

Schoolchildren from New Mexico and Arizona celebrated the birth of five Mexican gray wolf pups by naming the latest litter of ...

Arizona’s population of once-endangered bald eagles has flourished in the past year — with a record number of young hatched during the 2017 breeding season, state wildlife officials reported.

So much science starts with deciphering a genome, the blueprint for every being on Earth. With such roadmaps in hand, ...

Seven species of pangolin could soon be federally protected under the U.S. Endangered Species Act, an animal which officials have called "the world’s most heavily trafficked mammal." In an ...

Wolf reintroduction has for decades been a flashpoint in the West, pitting conservationists against rural conservatives.

U.S. Rep. Paul Gosar (R-Ariz.) introduced legislation this week to remove the Mexican gray wolf from the endangered species ...