In honor of Darwin’s birthday (Feb. 12), Freethought Radio interviews film director, screenwriter and author Matthew Chapman, the great-great grandson of Charles Darwin. Chapman’s book, “Forty Days and Forty Nights,” is a personal report on the Dover “intelligent design” trial, and “Trial of a Monkey: An Accidental Memoir” recounts his pilgrimage to Dayton, Tenn., home of the Scopes trial.”