Donald R. Prothero has taught college paleontology and geology for almost four decades at the California Institute of Technology, Columbia University, Occidental College, Vassar College, and Knox College. He is adjunct professor of geological sciences at California State Polytechnic University at Pomona, adjunct professor of astronomy and earth sciences at Mt. San Antonio College, and research associate in vertebrate paleontology at the Natural History Museum of Los Angeles County. His Columbia University Press books include The Story of Life in 25 Fossils: Tales of Intrepid Fossil Hunters and the Wonders of Evolution (2015) and Abominable Science! Origins of the Yeti, Nessie, and Other Famous Cryptids (2013).