This book is our Science Book at my school. It talks about, Sponges, Cnidarians, Worms, and Mollusks in Chapter 1. In Chapter 2 it talks about, Arthropods and Echinoderms. In Chapter 3 it talks about, Fishes and Amphibians. In Chapter 4 it talks about Reptiles and Birds. Last, in Chapter 5 it talks about Mammals. I only am up to Chapter 3 in school. The only reason I rated this book 4 stars was because, I find almost all my homework answers in there, and because this book is not the book I would read on my own free reading time. I think this book is almost perfect if your doing a project or report on, sponges, cnidarians, worms, mollusks, arthropods, echinoderms, fishes, amphibians, reptiles, birds, and/or mammals.
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