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Magic Tree House Research Guide #16: Polar Bears and the Arctic A Nonfiction Companion to Polar Bears Past Bedtime Written by Mary Pope Osborne and Natalie Pope Boyce Illustrated by Sal Murdocca Juvenile Nonfiction · Random House Books for Young Readers · Trade Paperback · Ages 7-10 · September 25, 2007 · $4.99 · 978-0-375-83222-2 (0-375-83222-X)

WHY IS THE arctic so cold? How do polar bears cross thin ice? How did people learn to survive in that harsh climate? Find out the answers to these questions and more in Magic Tree House Research Guide: Polar Bears and the Arctic, Jack and Annie's guide to the arctic. This is the nonfiction companion to Polar Bears past Bedtime.

Mary Pope Osborne and Natalie Pope Boyce are sisters who grew up on army posts all over the world. Mary is the author of over 50 acclaimed books for children. Natalie has worked as a children's librarian and as a teacher of English and E.S.L. This is their sixth book together. They live in New York and New England respectively

Click here for Mary Pope Osborne’s printable Author Bio
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