Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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By weight, Bone is five times stronger than steel.
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Our Right Lungs takes more air than our left lung.
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Human hair and fingernails continue to grow after death.
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In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
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We share 70% of our DNA with a slug.
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The human brain has the capacity to store everything that you experience.
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