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Why Do Some Animals Hibernate?

Patricia J. Murphy

出版	Rosen Publishing Group, 2004
主題	Juvenile Nonfiction / General
ISBN	08239623269780823962327
URL	http://books.google.com.hk/books?id=NGrvzgEACAAJ&hl=&source=gbs_api

註釋

Hibernate comes from the Latin word for winter, and that's when many animals disappear for months at a time. What do they do to prepare? How do they know when to sleep? What happens to animals that don't hibernate? Kids will be glad to have the answers to their questions about this marvelous natural phenomenon.