There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
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In Monopoly, the character locked behind the bars is called Jake the Jailbird. Officer Edgar Mallory sent him to jail.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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The offspring of two sets of identical twins are legally cousins but genetically siblings.
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Nachos were actually invented by a guy named Nacho. Happy Nacho Day!
13
The Platypus used to be considered a myth like Bigfoot and the Yeti.
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In 1918, after the treaty of Versailles (end of WWI), the French Commander-in-chief said "This is not a peace. It is an Armistice for 20 years." 20 years and 65 days later, WWII happened.
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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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