by John Tyler Bonner (2002): This book is part memoir, part distillation of 20th-century biology. Bonner (Morphology), a former Princeton University developmental biologist and lifelong devotee of cellular slime molds, invokes life cycles and development, his specialties, to talk about the last century's gigantic steps forward in biology. He covers advances in biochemistry, population genetics and embryology; the discovery of DNA structure; and the human genome project.