The human body is pretty creepy. Our immune systems can turn against us; our nervous systems look like scared tassels; and the skeletons we use as Halloween decorations are literally inside us all the time. There's something even worse, though: We can grow tumors. Not just regular tumors, but tumors with teeth.
Related Video: 10 Unsolved Mysteries of the Human Body
Meet the Teratoma
But Why So Toothy?
Written by Mae Rice February 11, 2019 / Updated: February 10, 2019
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