Why do we have belly buttons?

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Some people have innies. Some people have outties. Everyone has a belly button! But do you know why we have them? Let's find out in this video!


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Learn more about why other mammals may or may not have belly buttons in this article.Did you know that a kangaroo and a platypus are mammals-- but they don't have belly buttons? Want to know why? Check out this TED-Ed lesson on how different mammals give birth to learn the answer!
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It's important to understand what different parts of our body do so that we can stay healthy and safe! If you're curious about other parts of your body do a little research by reading and listening to others you trust.

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