If you're like me, you don't really think about your brain. Well, maybe when you see brain coral or a crazy brain-like cactus, but those are special occasions.
Did you know that just like the rest of your body, the brain starts out all smooth and pretty? Then, as it grows, it folds and refolds to accommodate all the connections and memories and brain stuff that needs to go in there.
Also, scientists have noticed that the higher the intelligence an organism has, the more its brain is folded. [And before you ask, we don't have the most folded brain. Dolphins have more folds than humans. Of course they do! They get to swim and play all day long. No dolphin cubicles on the horizon.]
Anyway... Check out this super great explanation of brain folding by PhD Comics. My brain just folded a little more taking it all in. Go science!