The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Bats sleep 18-20 hours per day.
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Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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