Notes:

http://dabrandonsphere.deviantart.com/art/Anime-and-Chibi-Skulls-419136169

Original Description
The physical anthropologist in me could not help but ask what the crania (skulls) of anime and chibi-style characters would look like. And what sort of evolutionary pressures would select for these features, in particular the exaggerated orbits (eyes)?

In fairness, not only do a lot of Western cartoons have their own unique stylizations that would produce bizarre skeletons of their own, but real infant skulls do have some freaky proportions. And it's not like professional anime artists don't need to know their basic human anatomy anyway.