Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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In zero gravity, a candle's flame is round and blue.
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
A ball of glass will bounce higher than a ball made of rubber.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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