The elephant brain weighs about 6,000g.
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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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A giraffe's kick is so powerful that it can decapitate a lion.
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Sloths take two weeks to digest their food.
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Cows can sleep standing up, but they can only dream lying down.
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