stackyFACTSYour body aggressively delegates resources based entirely on expected friction. Eyelid skin needs to be paper-thin to allow for rapid-fire blinking without weighing down your face. Meanwhile, the soles of your feet stack thick layers of heavily keratinized cells to handle the brutal, crushing impact of you walking on asphalt.
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Humans are one of the very few mammals on Earth capable of producing massive amounts of watery sweat to cool down, a feature known as persistence hunting that…
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Evolution is slowly trimming the fat, starting with a random arm tendon that hasn't been useful since we lived in trees. Around 14% of the global population…
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Fingers and toes wrinkling in water is not a passive reaction caused by skin absorbing moisture, but rather an active, involuntary neurological response…
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What bizarre manipulation tactic do adult domestic cats use exclusively on humans, but never on other felines?
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Pilomotor reflex, commonly known as getting goosebumps, occurs when tiny muscles at the base of your hair follicles contract, causing your body hair to stand…
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Sunburn is not actually a thermal burn caused by the heat of the sun, but rather a massive wave of cellular suicide triggered by extreme ultraviolet radiation…
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