Aquatic Mammals: Their Adaptations to Life in the Water

xii, 338 pp. Green cloth, gilt titles. Frontispiece of a shark, a fish, and a porpoise showing similarities in their body forms, illustrations throughout text, including several double-sided plates. Howell provides a comprehensive, illustrated study of how mammals like whales, seals, and manatees evolved and adapted to aquatic life, covering their anatomy, physiology, and sensory systems, and examining the mechanics of swimming, external and internal features, and evolutionary history,