Remember learning genetics in science class? You heard the story of good ol' Gregor Mendel and his peas, and maybe you compared yourself to your classmates to see who had simple genetic traits like a hitchhiker's thumb or a widow's peak. Those are traits that rely on one gene variation, which makes them perfect for learning about genetics. If your science class included the ability to roll your tongue in that list of Mendelian traits, we have some bad news: Tongue rolling isn't a simple matter of genetics. You could probably even learn to do it, if you tried.
Let the Good Times Roll
Why Some People Can Roll Their Tongue and Some Can't
Written by Ashley Hamer December 6, 2017
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