usbdongle:

usbdongle:

here is a fun science fact for you: human beings are the only animal to ever evolve a chin

i cant believe more people dont care about this. when i learned that fact in anthropology class i immediately told it to everyone i knew and i kept laughing about it for like the whole day afterwards. NO ONE KNOWS WHY WE HAVE THEM WE JUST DO, WE JUST GREW EM

(source)