A revised and updated comprehensive examination of the supervolcanic eruption of Toba in Sumatra, Indonesia over 75,000 years ago, and how it changed human genetic history by causing a population bottleneck, written by best-selling author Marie D. Jones and her father, the late geophysicist Dr. John M. Savino, Ph.D. The book describes what a supervolcano is, how they form, where they are located across the globe, and which ones may be ready to...