The Zoologist's Guide To The Galaxy: What Animals On Earth Reveal About Aliens - And OurselvesFrom a noted Cambridge zoologist, a wildly fun and scientifically sound exploration of what alien life must be like, using universal laws that govern life on Earth and in space. Scientists are confident that life exists elsewhere in the universe. Yet rather than taking a realistic approach to what aliens might be like, we imagine that life on other planets is the stuff of science fiction. The time has come to abandon our fantasies of space invaders