Amazon.com description: Product Description: It's a weird world out there... dazzle your friends with wacky facts and more from this mega new series. Did you know... Some primates leave smelly messages from each other from scent glands on their bodies. Gibbons can fling themselves from branch to branch across huge gaps of over 13 yards. Ape parents hold their babies up by the arms to help them learn to walk. A full-color, fun, and informative series, Secret Worlds offers a chance to get your teeth deep into a wide range of fascinating subjects from nature, history, and science. Every title has: Easy-to-read narrative text written by a specialist who combines expert knowledge with an entertaining and fresh style. Superb color photography that entices the reader into the subject world with close-up views and dramatic shots. Weird World feature boxes that reveal a wealth of wacky facts. Tried-and-tested websites to check out the latest info. A mega reference section with even more facts and figures for the enthusiast. Suitable for children aged ten and up -- as well as every other family member who is curious about the subject.