Donald R. Prothero is the author of over thirty titles in geology, paleontology, and evolutionary biology, including Weird Earth. He has taught college geology and paleontology for forty years at institutions such as Columbia University, Vassar College, Knox College, Pierce College, and Cal Poly Pomona.
Neil Hellegers is a narrator, actor, and educator who lives in Brooklyn, New York. His voice work can be heard during various commercials, sundry video games, and in numerous audiobooks. Neil has appeared in films, TV shows, and commercials, and has performed and taught Shakespeare to students of all ages.