The U.S. Fish and Wildlife Service is deciding if gray wolves should remain a protected species in Colorado.
A Denver Zoo visitor is recovering after she was bitten by a rhino Wednesday afternoon.
The U.S. Fish and Wildlife Service announced Thursday it would continue to protect as a threatened species a mouse that lives along streams in Colorado and eastern Wyoming, saying human development continues to threaten the animal’s riparian habitat.
Four conservation groups based in Wyoming, Colorado and Montana have filed a lawsuit seeking to compel federal officials to address the white-tailed prairie dog population.