Scientists found something huge that all blue-eyed people have in common

You’ve probably wondered, why do we have the colour eyes we do? It comes down to our genes. And scientists are really starting to get to the bottom of it.

Produced By Matt Johnston. Research by Lauren Friedman.

Follow TI: On Facebook

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.