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(But as stated by Andy on Formspring, "That was a special occasion. His left eye is green while his right eye is blue, characteristic of the genetic condition heterochromia. Throughout the series, he aged to 17, yet he completely looks no different.Īlthough his eyes typically lack detail and appear as small black dots due to a minor mutation, they are shown to have color in the episode "The Enchiridion!," when Finn is tried by the Dark Magician.
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He has several missing teeth because he bites trees and rocks among other things.