Great read! I especially like how a lot of his speculation turned out close to what we know today. Choice quote: "I can see no difficulty in a race of bears bei

Great read! I especially like how a lot of his speculation turned out close to what we know today. Choice quote: "I can see no difficulty in a race of bears being rendered, by natural selection, more and more aquatic in their structure and habits, with larger and larger mouths, till a creature was produced as monstrous as a whale."