Have you ever wondered how many animals there are in the world? There are millions, and you'd be surprised to know how many of them are actually endangered species. The existence of animals such as condors, whales, and manatees are threatened every day, and it's up to us to do something about it. This book teaches you how to make a difference. Whether it's by writing to organizations, volunteering, or just letting other people know what's going on, you'll be doing your part to save the animals.