What do the wild yak and the chimpanzee have in common? The same thing as the cheetah and the sloth: Their populations are dwindling. This beautifully illustrated coloring book spotlights 30 endangered species -- from the marine environment of sea otters, manatees, and humpback whales to the jungle worlds of tigers, gorillas, and orangutans. A variety of magnificent birds facing extinction is also depicted -- from whooping cranes to ivory-billed woodpeckers...