Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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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 guy to win Who Wants To Be A Millionaire (USA) used none of his lifelines until the final question, where he called his dad. During the call, he told his dad he didn't need any help on the final question, but he just wanted to let him know that he was about to win $1,000,000.
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Scientists have developed a 'hangover-free' beer that has electrolytes, making it more hydrating and refreshing.
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