The caribou herd that is at the center of the debate over oil drilling in the Arctic National Wildlife Refuge has declined by ...

Migratory land mammals roam annually over large swaths of landscape to obtain seasonally available resources. For example, caribou (Rangifer tarandus) migrate southward in massive herds to their ...

Several caribou herds in Alaska's Arctic are on the decline. That now includes the Porcupine herd, which is the largest. Biologists say the reasons for the downward trends are hard to pin down. Alaska ...

The Western Arctic Caribou Herd, once the biggest in Alaska, is faltering, having fallen from a high of 490,000 animals in 2003 to only 152,000 as of 2023. But to the east, the Porcupine Caribou Herd ...

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 ...

JUNEAU, Alaska — 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 ...