This is the GURPS book dedicated to animals you can find in your local zoo. While this may not seem exciting to some, it can be very useful in a game world. Almost every nature based character will want a animal friend to help them out, so this is a great book to have. In addition, you can use this as a great "monster guide" at times. Throw the regeneration, damage resistance, and hyper strength advantages on a bear and you have a monster bear ready to bring a world of hurt down on unexpecting adventurers.