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Close to Death: Hibernation
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Close to Death: Hibernation

49MIN

One of the oddest natural adaptations is super-deep sleep. These near-death experiences feature animals temporarily stopping their hearts and brains. Some can hibernate for months at a time, while some can literally freeze themselves, employing a natural antifreeze to keep their cells intact. As we explore this natural time travel, we discover that this lifestyle is not without risk.

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This video is part of World Wildlife Day

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