An imposing line of caribou stretches for miles across the frozen tundra of Alaska. The sound of clicking hooves echoes through the air as the herd follows its centuries-old migration route. With their thick coats and their padded, shovel-like hooves, caribou are ideally adapted to their snowbound e[...]

Originally set aside by President Harding in 1923 as a back-up resource for military fuel needs, the National Petroleum Reserve Alaska is home to half a million migrating caribou, countless migrating birds from all over the world, and, surprisingly, one of the largest Polar dinosaur fossil beds in t[...]