Douglas Palmer: Douglas Palmer is a freelance science writer who has written 10 books on prehistory and been a major contributor to another 6. They include works for both adults and children and range in subject matter from human evolution to dinosaurs. He teaches for Robinson College of Cambridge University on the Natural Science Tripos and is a lecturer for the University of Cambridge Institute of Continuing Education. He was formerly a senior lecturer in Earth Sciences at Trinity College, Dublin and spent two years as an exhibition co-ordinator at the National Museum of Wales. He presently lives with his wife in Cambridge.