How to Clean a Hippopotamus: A Look at Unusual Animal Partnerships

"Why does a plover stroll into a crocodile's mouth? And how does a turtle keep a hippopotamus clean?" This book looks at the strange and wonderful symbiotic partnerships between some unlikely animal pairs, from ravens and wolves that hunt together to the egrets that protect antelope and receive food in return. Additional information about symbiosis. Sizes, habitats, and diets of animals featured in book. Suggestions for further reading. Full-color cut- and torn-paper collage illustrations.