An Alaska Native group has sued the Trump administration in federal court, alleging it unlawfully revoked protections for the ...

Learn more about mountain caribou in British Columbia and how wolf reduction may not be the best way to protect herd populations.

Add Yahoo as a preferred source to see more of our stories on Google. The Porcupine caribou herd on a patch of snow photographed from an airplane during an aerial survey last year. Biologists take ...

Conservation groups sued Monday over a state program in Alaska that authorizes killing brown bears and black bears as a way to increase the size of a once-significant caribou herd in the southwest ...

The caribou herd that is at the center of the debate over oil drilling in the Arctic National Wildlife Refuge has declined by about a third over the past eight years, according to state biologists.