That's Why People Don't Have Black Eyes (Never Ever)
We rarely think about how interesting and unique our bodies are. Did you know, for example, that no human being has truly black eyes? Or that if the human eye was a photo camera, its resolution would be about 576 megapixels? Or that a human produces from half a quart to 1 liter of saliva every day, depending on the person. That’s enough saliva in a year to fill a bathtub! Do you still think you know your own bodies perfectly? Okay, how about this?
The only thing that makes our blood types different is… sugar, a human hair is stronger than the same diameter copper wire, our belly buttons have…
The skinny
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