Body Parts

Double-Jointedness, Hitchhiker's Thumb, and More
eAudio - unabridged
Audio (0.07 hours)
Product Number: Z100131023
Released: Oct 31, 2017
Business Term: Purchase
ISBN: #9781512447156
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Can you stretch your thumb back to your arm? Is your pinkie straight or slightly bent? What determines the way your joints bend—or don't bend? Read this book to find out about how your genes affect your physical features.

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