Caribou Migrating Near the Arctic Circle
Additional Details:
| Caribou are the most numerous large mammals in the Arctic Refuge. Two herds occur there: the Porcupine Herd (named afer the Porcupine River) and the Central Arctic Herd. The Arctic National Wildlife Refuge is within the main range of the Porcupine Herd, which numbers approximately 152,000 animals, and on the periphery of the range of the smaller Central Arctic Herd with 23,400 animals |
