From Extraterrestrials to Animal Minds

In this learned romp of science writing, Cambridge professor Simon Conway Morris cheerfully challenges six assumptions—what he calls ‘myths’—that too often pass as unquestioned truths amongst the evolutionary orthodox. His convivial tour begins with the idea that evolution is boundless in the kinds of biological systems it can produce. Not true, he says. The process is highly circumscribed and delimited. Nor is it random. This popular notion holds that evolution proceeds blindly, with no endgame. But Conway Morris suggests otherwise, pointing to evidence that the processes of evolution are “seeded with inevitabilities.” If that is so, then what about mass extinctions? Don’t they steer the development of life in radically new directions? Rather the reverse, claims Conway Morris. Such cataclysms accelerate evolutionary developments that were going to happen anyway. And what about that other evolutionary canard: the “missing link”? There is plenty