Players take on the role of paleontologist-zookeeper, digging up fossils in the field, assembling their finds, and then bringing extinct animals back to life in the Extinct Research Lab. Enclosures feature dramatic prehistoric landscapes — misty springs, tar pits, glaciers, even the occasional caveman — and the game layers in disease research, herd management, and a first-person wrangling mode for dealing with rampaging dinosaurs. Keeping the extinct animals thriving attracts a steady flood of fascinated zoo guests.