There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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Scientists aren't sure what color dinosaurs were.
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Pure water (H2O) does not conduct electricity on its own.
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