There are different reasons as to why I enjoyed this book, and why I thought it could have been better. I enjoyed it because I did find a lot of the facts fascinating: learning that fish, squids, and octopuses have eyes that are similar to human eyes, they have adjustable lenses that focuses on sharp images, etc. It is a very interesting and in-depth look at how these underwater animals really do survive, something that I personally have not put much thought into. I thought the writing was clear and somewhat easy to read. The vocabulary is a little more challenging than I anticipated, especially with all of the chemistry information. However, I appreciated the illustrations. When browsing through the book before reading, I thought to myself that this would be a good children's book because it has a lot of illustrations. It is written like a chapter book, but presented almost like a children's book. It has a ton of pictures and the pages are bigger than novels. However, this is where my negative feelings come in. Despite finding all of the information fascinating, I got bored with the book. I love underwater animals and learning about them but I felt like I was reading a text book. Considering that this is supposed to be a book for children, I felt that they the author could have somewhat wrote it in a tone that was more fun to motivate readers to continue to read. Instead, sentence after sentence was just information being stated. Overall, the main idea of the book is to inform readers on how ocean animals such as dolphins and seaweed work with one another to survive and how our actions on shore, such as oil spills, effect their way of life. I do recommend this book for readers who are truly fascinated with ocean animal life, or if they need information for a research, however it is a book that I would recommend to older readers. ( )