grant's caribou

Follows the Caribou migration and highlights the enormity of the loss that will occur if oil drilling is allowed in the territory.

Karsten Heuer describes the experiences he and his wife shared as they migrated across the arctic with a herd of caribou. Includes anecdotes and photographs from their journey.

Wildlife biologist Karsten Heuer and his wife, filmmaker Leanne Allison, chronicle the experiences they had while following the Porcupine caribou herd as it migrated from the Yukon winter range to its endangered Alaskan calving grounds in the Arctic National Wildlife Refuge.

Wildlife biologist Karsten Heuer and his wife, Leanne, follow the five-month migration of 123,000 caribou over mountain ranges and icy rivers to their calving grounds in Alaska's Arctic National Wildlife Refuge, becoming the first humans to ever join a herd on the trek.