Great Yellowstone ThawFavoriteAdd to Favorites Journey with Kirk Johnson to Yellowstone, where wolves, grizzlies, beavers and Great Gray owls survive one of the greatest seasonal changes on the planet. As the temperature swings 140 degrees, cameras capture how the animals cope.
PHOTO GALLERYTake a Closer Look with PhotosCheck out the animals of Yellowstone as the families brave a brutal winter, face a torrent of water during the wet spring, and transition during the soaring temperatures of summer.Explore MoreExplore More