![National Geographic Kids Logo](https://cdn.creatureandcoagency.com/themes/natgeokids/assets/images/ng-logo.png)
If you could touch your brain it would feel like toothpaste.
More about Science ❯Elephant calves suck on their trunks just as human babies suck on their thumbs.
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.