Animals alive! -- How animals evolved -- The variety of life -- Unexpected consequences -- Going, going, gone! -- What are the threats? -- How threatened is it? -- Mammals -- Jaguar -- Sumatran orangutan -- Sea otter -- Ethiopian wolf -- Manatee -- Tasmanian devil -- Polar bear -- Black rhinoceros -- Birds -- Southern rockhopper -- Whooping crane -- Reptiles -- Leatherback turtle -- Komodo dragon -- Amphibians -- Golden toad -- Fish -- Southern bluefin tuna -- Invertebrates -- Coral reef -- Monarch butterfly -- Saving species -- Tracking tigers -- Keeping animals alive -- Backyard naturalist -- Setting up a reserve -- New species.