Stock photography, photos: Watchfull Sumatran Tiger Stock photos of Sumatran Tiger looking off in the distance Photograph: © Cary Ulrich Click for a larger image and more information Keywords associated with this stock photo: sumatran, tiger, panthera, tigris, sumatrae, cats, feline, felines, felidae, big, large, predator, predators, wild, wildlife, nature, stripes, fur, hunter, Indonesia, endangered, species, paws, claws, power, powerful, sumatran tiger, tigers, big cats, endangered species, animals, water