While Gimmi knows there’s nothing he can do about it (either you can roll it, or you can’t, so they say), his very very adorable 4-year old baby brother is a different story. I love to curl my tongue in front of him and watch Gino try to copy me in vain. Usually he ends up frustrated and just stomps away from me. So cute.
We’ve all heard that tongue-rolling (or tongue-curling or tongue-folding) is an inherited dominant trait. If you can, then at least one of your parents can. However, research says the inheritance is not that secure, based on a 1975 study which found that identical twins don’t always share the tongue-rolling habit. So, nobody knows if it’s really inherited or not.
Another question that comes to mind is, is there a purpose to it, or an evolutionary advantage? No answer to that either, but a study in Spain showed 67% women and 64% men can roll their tongues, while another more recent internet survey suggested up to 81% people might be able to perform the feat.
Maybe I could make my own poll about that. We’ll see. For now, I’ll have fun lording my rolls over Gimmi.