Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
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Tigers can see 6 times better at night than humans.
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If the human eye was a digital camera, it would have 576 megapixels.
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When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
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A person will create enough saliva to fill two average size swimming pools during his lifetime.
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Early American humans hunted car-size armadillos and used their shells for houses.
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