All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
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Only 1% of bacteria cause disease in humans!
2
The human body contains over a billion miles of DNA.
147
Every time you lick a stamp, you're consuming 1/10 of a calorie!
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The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
The smallest human penis ever recorded was just 5/8 of an inch long!
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You see your nose at all times, your brain just chooses to ignore it.
30