Ultimate Zoo Wallpapers

There is a remarkable zoo in Nebraska that has enclosed its entire grounds and flipped night for day, allowing visitors to experience nocturnal animals in their natural habitat, when the animals are awake. In California, a zoo allows cheetahs to engage in free-roaming hunts. Another encourages rare, nearly extinct species to breed. This documentary is a close-up, behind-the-scenes look inside the world’s most fascinating and animal-friendly zoos.