Earth and Life

Andrew H. Knoll is the Fisher Research Professor of Natural History and Earth and Planetary Sciences, Emeritus, at Harvard University. His books include A Brief History of Earth: Four Billion Years in Eight Chapters and Life on a Young Planet: The First Three Billion Years of Evolution on Earth (Princeton). Recipient of the International Prize for Biology and the Crafoord Prize in Geosciences, he is a member of the National Academy of Sciences.