Stephen Heywood was twenty-nine years old when he learned that he was dying of ALS -- Lou Gehrig's disease. Almost overnight his older brother, Jamie, turned himself into a genetic engineer in a quixotic race to cure the incurable. Hi...

The Beak of the Finch tells the story of two Princeton University scientists – evolutionary biologists – engaged in an extraordinary investigation. They are watching, and recording, evolution as it is occurring – now – among t...