12 myths about the human body that we should forget - 9GAG
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The Deadliest Female Sniper in History<<<freak yeah
Weird yet useful facts - 9GAG
If you can't avoid close combat
Color of snot infographic by the Cleveland Clinic.
I don't know about all of them but the stomach one isn't true. Acid doesn't eat through because there is an enzyme that activates the acid when food is eaten and the acid remains dormant when no food is present