Why Did T. rex Have Short Arms?

When did the first dinosaurs appear on Earth? What happened to them 65 million years ago? How do we know about dinosaurs—and are there any still alive today? Dinosaurs are absolutely irresistible—and children will love learning about these fascinating creatures and looking at the cool illustrations!

ISBN10:	1454906790
ISBN13:	9781454906797
Number Of Pages:	32
Publication Date:	20140701
Publisher:	Sterling
Binding:	Paperback

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When did the first dinosaurs appear on Earth? What happened to them 65 million years ago? How do we know about dinosaurs—and are there any still alive today? Dinosaurs are absolutely irresistible—and children will love learning about these fascinating creatures and looking at the cool illustrations!