Your Inner Fish by Neil Shubin is about the discovery of the "missing link" between lizards and fish, Tiktaalik, as well as what makes people evolve and the changes that occur in evolution. Shubin is an paleontologist who discovered the bones of a fish with hands, called Tiktaalik. Tiktaalik was a huge find, as it was already known to be the transition from fish to reptile, but nobody had ever seen proof of its existence. Additionally, Shubin discusses evolution, specifically how the body decides what parts develop as needed. These range from better senses of smell to growing or losing limbs to better suit the environment. Not only that, but he also shows how similar our body parts are to ancient creatures that have gone extinct many years ago. For example, we share a large part of our genes with worms, and our hands used to be fins! I liked this book because it was easy to read but still taught me a lot about ancient life and transitions in anatomy. I'd recommend Your Inner Fish to anyone who wants to learn about the ways our bodies have grown from simple fish to the complex animals we are today. It does take a little while to actually get into the meat of the book, but the introductory paragraphs pass quickly.