4971817
9780792259558
Fun facts that kids want to know and love to share, including how many muscles, how much hair, the hourly breath count, and the heartbeats per day.O'Sullivan, Robyn is the author of 'Your 206 Bones, 32 Teeth, and Other Body Math And Other Body Math', published 2006 under ISBN 9780792259558 and ISBN 0792259556.
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