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

State officials announced this week that both the Porcupine and Central Arctic caribou herds have faltered. The data mirrors a broader trend for Arctic herds.

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 ...

Two bull caribou of the Western Arctic Caribou Herd swimming across the Kobuk River during fall 2011 migration in Kobuk Valley National Park. The herd has been in decline since hitting its peak ...

Quick Take Survival for migratory land animals is now tied to overcoming man-made obstacles such as roadways and railroads.

A study published in the journal Scientific Reports last month found that roads significantly changed some of the western Arctic caribou herd's behavior and delayed their migrations. The herd has one ...

In the latest act of resistance in a decades-long fight over Alaska's Arctic National Wildlife Refuge, thirteen organizations ...

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 ...