Marine Mammals of the World: A Comprehensive Guide to Their Identification
The Walking Whales: From Land to Water in Eight Million Years
The Origin of Species
Biology of Marine Mammals
Return to the Sea: The Life and Evolutionary Times of Marine Mammals
Introduction to Marine Biogeochemistry
Ocean Circulation: Prepared by an Open University Course Team (S330)
Encyclopedia of Marine Mammals
Gaining Ground, Second Edition: The Origin and Evolution of Tetrapods (Life of the Past)