author
1928–1990
A marine biologist with a gift for making ocean life vivid, this writer helped bring dolphins, whales, porpoises, fishes, and sea turtles closer to general readers. His books and research grew out of years of hands-on scientific work, especially on marine mammals and Caribbean and western Atlantic wildlife.

by Stephen Leatherwood, David K. (David Keller) Caldwell, Howard Elliott Winn
Born in 1928 and active through the mid-20th century, David K. Caldwell was an American marine biologist and author whose work centered on sea life of the Atlantic, Caribbean, and Gulf regions. Library and research records identify him as David Keller Caldwell, and list publications on fishes, sea turtles, dolphins, and other marine animals.
Caldwell combined scientific research with accessible natural-history writing. Records for his books include The World of the Bottlenosed Dolphin, written with Melba C. Caldwell, and Whales, Dolphins, and Porpoises of the Western North Atlantic, a widely circulated identification guide. His research also appeared in studies of dolphin communication and behavior, including work published in Nature.
Institutional sources connect him with museum and field-research work, including service as Curator of Ichthyology at the Los Angeles County Museum of Natural History. He died in 1990, leaving behind a body of work that reflects both careful observation and a lasting fascination with marine life.