So, I'm currently studying the structure of the skull thanks to Proko's anatomical cast, and I noticed the small holes in the bone structure... and I've found myself very dumb XD Since they are symmetrical and quite aligned, I assumed it was some marks left due to the casting process... Until I noticed them in real skulls too. So I'm putting this here in any case someone's wondering what they are. Here's your random anatomy fact of the day : those are called "foramen" (plural "foramina") It means "opening" and allows muscles, nerves, arteries, veins, or other structures to connect one part of the body with another. The more you know, eh