Cow and calf caribou on the coastal plain of Alaska and the Yukon. The coastal plain is the calving grounds of the herd and is under the constant threat of being opened for oil development.
Porcupine Caribou Herd ~ Rangifer tarandus granti ~ are a barren ground caribou herd numbering over 179,000 members ~ they winter in the Yukon, Alaska and Northwest Territories ~ During their annual spring migration to their calving grounds in Canada's Ivvavik National Park and Alaska's Arctic National Wildlife Refuge ~ they are thought to have the longest land mammal migration in the world ~ aerial images of migration during spring
