David Keller Caldwell

David Keller Caldwell was a marine mammal researcher whose work helped document cetaceans of the Atlantic and Caribbean. Whales, dolphins, and porpoises of the western North Atlantic credits him with Stephen Leatherwood and Howard E. Winn, with special assistance from William E. Schevill and Melba C. Caldwell. Issued as a federal identification guide, the work covers waters that include the Caribbean Sea, Gulf of Mexico, and Atlantic coasts of Canada and the US. Its organization favors similarities visible in the field rather than formal scientific relationships, helping observers distinguish species from appearance and behavior. Photographs provide the main identification evidence, while a branching key supports the examination of stranded animals. Appendices also explain how sightings and strandings should be reported. Whales, dolphins, and porpoises of the western North Atlantic reflects Caldwell’s practical contribution to marine biology: it translates specialist knowledge into a structured reference for researchers, naturalists, and observers working across a very large ocean region.