He created the theory of evolution with his discoveries. He was a very seasick passenger who sailed around the world. He loved animals. Read this great book about this great man to learn more about him. This is the best "Who Was" book ever. He is the best scientist of his time. Please buy this book. It is one of the best. You will never stop reading till the end of this book then you read it again. It also has great pictures too! I loved it. You will love it too! Now I love science and I learned about the changing of animals and humans. I learned a lot! He found a lot of stuff. He was friends with Sir Joseph Dalton Hooker, Thomas Henry Huxley, and Sir Charles Lyell. I also love other "Who Was" books. It makes me feel like I'm there. Darwin wrote two books.