Great Yellowstone Thaw

Journey to Yellowstone, where wildlife survives one of the greatest seasonal changes.

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.

Take a Closer Look with Photos

PHOTO GALLERY

Take a Closer Look with Photos

Check 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.

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