Low Oxygen Suffocates Darwinian Explanations for the Cambrian Explosion

When the American Association for the Advancement of Science publishes a theory seeking to explain the Cambrian explosion, you can be confident you're getting some of the best thinking out there. In Science Magazine's Halloween issue, nine researchers from eight prestigious universities, including Yale, University of Illinois, and Caltech advanced their latest offering on the emergence of nearly twenty new animal body plans in the geological blink of an eye.

The basic idea: animals wanted to...