Zoo Tycoon 2: Extinct Animals is a video game expansion pack for Zoo Tycoon 2 released October 17, 2007. The expansion focuses around extinct animals, mainly dinosaurs or ice age creatures, as well as more recently extinct creatures like the dodo, thylacine and quagga.This expansion pack follows the other expansion packs, Endangered Species, African Adventure and Marine Mania. Extinct Animals replaces and includes the animals and objects from the earlier Dino Danger Pack premium download.