Yellowstone est rempli d'animaux libres tels les grizzlies, ours noirs, bisons, loups gris, cignes, grues du Canada et orignaux. Photos prises avec une lentille très longue.-- Yellowstone is full of free roaming animals including grizzlies and black bears, bisons, gray wolves, trumpeter swans, sandhill cranes, elks and moose. Here are a sample of the ones we saw at the en of May. Photos taken with a very long lens.