"At the Water's Edge: Fish with Fingers, Whales with Legs"
by Carl Zimmer
Reading history and reviews
Finished in 2007I really enjoyed this one, another popular science book but this time about the process of "macroevolution", which is essentially large-scale changes such as "how did aquatic animals evolve to survive on land?" (the fish with fingers) and "how did land-based animals evolve to survive in water?" (the whales with legs). Highly recommended.