Zoo Tycoon 2: Extinct Animals is a video game expansion pack for Zoo Tycoon 2. It was released in October 17, 2007. This expansion pack follows the other expansion packs, Endangered Species, African Adventure and Marine Mania. Extinct Animals replaces, and includes the similar Dino Danger Pack premium download. Hence the title, the game's theme is dinosaurs, ice age animals, and other long gone species.