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11 amazing facts about belly buttons

Rebecca HarringtonMar 19, 2016, 17:40 IST

A tattoo is seen on the belly of Ivet Lalova of Bulgaria during the women's 200m event during the Golden Gala IAAF Diamond League at the Olympic stadium in Rome June 6, 2013.Tony Gentile/REUTERS

I'm supposed to start this story with a joke about navel gazing, but that's been done before.

So instead, I'm going to hit you with some equality. We all have belly buttons, people.

They are the great equalizer.

I bet you've never thought about your own navel that much. I certainly hadn't before I started researching this article.

But if you would permit us a little navel-gazing ... there, I did it.

Here are 11 legitimately interesting facts I found about belly buttons. Enjoy.