Bats sleep 18-20 hours per day.
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It has been estimated that a bite from a grizzly bear can crush a bowling ball.
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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When cats are happy, they may squeeze their eyes shut.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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All pandas are ‘owned’ by China. They rent them out to zoos for $1mil/year each with minimum of 10 years.
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The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
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