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There are many books that will show you what dinosaurs looked like and how they behaved. But this is the only simple book that will tell you how dinosaurs got to be the way they were. Why did some dinosaurs grow to be the biggest animals that have ever lived on land? Why did some dinosaurs walk on two legs and others on four? Why were some dinosaurs covered from head to tail with heavy armor? Why did T. Rex have a mouth that could swallow five hundred pounds in a single bite? This book tells the fascinating story of a great arms race that began with some of the earliest creatures on earth--a race for survival that actually forced dinosaurs (and other animals) to get bigger, to run faster, to develop elaborate suits of armor or to have some of the most dangerous teeth to ever exist on earth.
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Book Description Riverbend Publishing, 2009. Hardcover. Condition: New. Never used!. Seller Inventory # P111931832994