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Birds
by Burstein, John
$22.88
List Price: $28.67
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Description
Maybe people keep birds as pets because they can do what humans can only dream about, which is to fly. Readers explore how a bird's special bones, air sacs, muscles, and feathers make this feat possible. They'll discover why these winged creatures have two stomachs and how they can sleep without falling off branches.
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Product Details
- Jan 23, 2008 Pub Date:
- 0836889533 ISBN-10:
- 9780836889536 ISBN-13:
- English Language
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