Mushrooms are more closely related to humans than they are to plants.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
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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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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.
15
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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