Like you, animals need to sleep. But they get their rest in lots of different ways. There are animals that sleep during the day, and others that snooze after the sun goes down. A few just take short naps, but some may be awake for only a few hours a day. There are animals that lie down to sleep, and creatures that doze while standing, hanging upside down, floating in the water — even flying.

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24 pages

Houghton Mifflin                   May 2011