Belly button lint is made of clothing fibers, hair, and dead skin cells

Likes

More Like Discover

Find out about this hair-raising international event…

Learn about the vibrant culture of India…

Join us in a thrilling chase with the fastest land mammal on Earth…

You’ll meet some seriously strange creatures here…

Type whatever you want to search

You’re leaving natgeokids.com
to visit another website!

Ask a parent or guardian to check it out first and remember to stay safe online.

You're leaving our kids' pages to visit a page for grown-ups!

Be sure to check if your parent or guardian is okay with this first.