Some herds of caribou migrate between 1,250 and 1,350 kilometers in Canada and Alaska each year to get from their wintering grounds to breeding grounds and back again.
K. Joly/National Park Service
Some herds of caribou migrate between 1,250 and 1,350 kilometers in Canada and Alaska each year to get from their wintering grounds to breeding grounds and back again.
K. Joly/National Park Service