The hole in the soda can tab is actually used to hold a straw in place and stop it from rising.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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The first foreigner to become a samurai was an African slave.
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Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
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