The Funny Ways That Animals Sleep | National Geographic

All animals need to get their Z's, but some of them do so in more unusual ways than others. Watch and learn fun facts about how walruses, bats, hippos, puppies, and other animals sleep.
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Click here to read more: http://news.nationalgeographic.com/2015/09/150905-animals-sleep-science-dreaming-cats-brains/

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The Funny Ways That Animals Sleep | National Geographic
https://youtu.be/8JSZkfMpJko

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