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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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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The average person will go on a date at least 100 times before they finally marry.
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After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
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One human hair can support 3 ounces.
191
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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When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Mushrooms are more closely related to humans than they are to plants.
47