This book contains hundreds of fascinating facts about the animal world. In it you can discover how slowly a sloth moves, how long a giraffe’s neck is and which mammal has legs thinner than pencils. You can find out how long mammals live, what they eat and how they communicate. The book explains how mammals evolved millions of years ago and ho, today , many are in danger of becoming extinct. Maps and lists give summaries of the record-breakers of the animal world. Unusual facts are brought to life by amusing comparisons, stunning realistic artwork and humorous cartoons.