Video "Being Caribou" by Leanne Allison & Diana Wilson, husband and wife team Karsten Heuer (wildlife biologist) and Leanne Allison (filmmaker and environmentalist) follow a herd of 120,000 caribou on foot across 1500 km of Arctic tundra. In following the herd's migration, the couple hopes to raise awareness of the threats to the caribou's survival. Along the way they brave Arctic weather, icy rivers, hordes of mosquitoes and a very hungry grizzly bear. Dramatic footage and video diaries combine to provide an intimate perspective of an epic expedition. National Film Board of Canada.