Bats sleep 18-20 hours per day.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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There's a lizard known as the 'Jesus Lizard' that can run across water.
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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Parrot parents "name" their children with a signature call.
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A group of kittens is called a "kindle".
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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