Why do we need belly buttons?
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Description
We all have a belly button. Right there, in the middle of our belly, there’s a nub. Some go in, some stick out, but what exactly are they for? We asked pediatrician Emma Gerstenzang to help us find the answer.
Got a question that’s hard to stomach? Send it to us at BrainsOn.org/contact, and we’ll help digest the answer for you!
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