A sea lion pup recognizes its mother's call, even with thousands of other noisy sea lions about. A vervet monkey shouts “ha-ha-ha” to warn of an eagle passing overhead. A peacock fans its colourful tail feathers in a silent but impressive display to entice a peahen. Whether it's to attract a mate, warn of predators or mark their territory, animals share information in some extraordinary ways. Containing lots of interesting facts, activities and easy-to-do experiments, this title in the Animal Behavior series takes a resourceful approach to exploring animal life. Grade 3-5-This book is by no means a comprehensive resource; instead, it delivers interesting facts on an assortment of mammals, insects, fish, and birds. The chapter "Saying it with sound" shares select nuggets of information about the calls and percussive noises employed by certain monkeys, birds, elephants, and some marine life. "Saying it with smell" covers the ways in which some species generate odors from their bodies to send mating messages, mark territory, and direct others of their species to food. Other chapters examine body language, vibrations, luminescence, and sign language. The end of each unit features a simple exercise designed to reinforce the preceding lesson; some of them are more easily reproduced by children than others. The exercise on smell, for instance, simply requires participants to blindfold a friend and then wave a perfumed piece of paper towel; Kaner's study of vibrations, on the other hand, introduces Morse code and requires considerably more manual dexterity and abstract thought. Douglas's photo-realistic artwork contributes considerably to the overall effectiveness of this presentation. Browsers will find their curiosity piqued by this fine introduction to communication throughout the animal kingdom. Catherine Threadgill, Charleston County Public Library, SC Copyright 2002 Reed Business Information, Inc. Packed with interesting facts, this spacious, large-sized picture book combines a lively, informal text with big, bright, realistic illustrations, photographs as well as original artwork, that show animals in their environment,... an excellent choice for sharing and reading aloud.― Booklist Douglas's photo-realistic artwork contributes considerably to the overall effectiveness of this presentation. Browsers will find their curiosity piqued by this fine introduction to communication throughout the animal kingdom.― School Library Journal Etta Kaner is a retired elementary school teacher and writer for both children and educators. Her children's books have won numerous awards, including the Silver Birch Award, the Scientific American Young Readers Book Award and the Science in Society Book Award. She lives in Toronto, Ontario.