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

Likes

More Like Discover

Can these creatures live forever?!

Take a deep breath and join us as we dive to the depths of the sea…

Meet the fearsome Celtic queen who fought against the Romans…

Test your knowledge of these majestic, mysterious predators with this fun quiz!

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.