Zoo Tycoon: Dinosaur Digs is an expansion pack to original Zoo Tycoon game that adds prehistoric dinosaurs and Ice Age beasts to your zoo. Now you can manage more than 20 prehistoric creatures, themed dinosaur buildings and attractions, prehistoric foliage, volcanoes and tar pits, and special staff members including research scientists and a Dinosaur Recovery Team. Zoo Tycoon: Dinosaur Digs adds six new dinosaur-specific scenarios, but the gameplay is basically pretty much the same like Zoo Tycoon. The minor difference is that you don't adopt fully-grown animals, but you must instead purchase the dinosaurs as eggs (of course with exception of mammals). These new beasts in your zoo will cause lots of problems, so they require expensive electrical fences, do you remember Jurassic Park?  In case that they could escape, you will also need to buy an expensive Dinosaur Recovery Team (DRT). The DRT guys are smart - they always bring you your dinosaurs back, though this recovery team will cost you some money. Overall, the new content provides some fun, but more creative scenarios would have been nice. Similarly to Zoo Tycoon, this expansion will catch rather girls because they likes to take care of animals. But I think 15 bucks is probably too high price for this add-on. Note: For those who already bought this game, you can download new Animals, Buildings Objects, Dinosaurs Scenarios & Misc from here.