9 Body Parts That Might Change Soon

Look at yourself in the mirror. Yeah, right in the eye. See that little fold of tissue in the inner corner of both of your eyes? Well get ready for this, it was actually once a third eyelid, or nictitating membrane. You can see it today in snakes or lizards, for example. The third eyelid was used for the same purpose as the other two, although it’s unclear whether humans ever even had it fully grown. This membrane wasn’t as thick as the two eyelids we have, and it could moisten the eye without obstructing the view. Right now, all that we have left of it is this tiny fold in the corner of the eye, and most likely, in the future, we will lose it altogether. And maybe we’ll finally stop waking up with that yucky crust that forms in our eyes overnight.