In the final chapter of his book on the origins of vertebrate sex, author and paleontologist John Long pays homage to the humble placoderm, which got the erotic ball rolling.
In Chapter 2, "Consequences and Evolution: The Cause That Works Backwards," author Susan M. Schneider places evolutionary theory in terms of the science of consequences.
Two 9,000-year-old skeletons will be held by University of California, San Diego, officials—rather than turned over to American Indians for reburial—until a lawsuit is settled.