O Tycoon: Extinct Animal Expans

Zoo Tycoon 2: Extinct Animals, the biggest expansion pack to date for the hugely popular, award-winning Zoo Tycoon 2, lets gamers bring animals that once roamed the Earth back to life
With new challenges and more than 30 new animals, players can create environments the creatures once lived in and learn about times that date back to the Ice Age.
more than 30 new animals, ranging from the adorable dodo bird to the dangerous saber-toothed cat, and more than 10 new dinosaurs, such as the T. rex and stegosaurus, for the ultimate zoo experience.
New gameplay. With exciting new ways to play, Zoo Tycoon 2: Extinct Animals challenges players to recover escaped dinosaurs, with the new first-person tranquilizer mode.
Players can also search for hidden fossils around the zoo, build animal fossils and create new extinct animals in the Extinct Research Lab.

Requires Zoo Tycoon 2