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OMG OMG! A 3rd Grader in United States wants to know, "why is the brain bumpy?"

Here's an answer:
The lumps and grooves in your brain's surface allow it to pack more cells into a small area. Without the folds, your head would have to be HUGE. Read More

Wow, the brain is so cool!
Hey, what's the one thing you wish you knew about the brain?

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