剧情简介：How to Clean a Hippopotamus, a book about animal symbiosis, offers readers a close-up, step-by-step view of nature's fascinating partnerships. You can find out why a mongoose comes running when a warthog lies down, how a crab and an iguana help each other out, why ravens follow wolves, and more. You can witness the ingenious lifestyles of some of the world's most unusual animal...(展开全部)
作者：Steve Jenkins
ISBN：9780547994840
