Five Facts You Didn't Know About Eye Color (Plus Pro Tips to Brighten Yours!)

Do you know which eye color is most rare, which makes it hardest to read emotions, and which hue is shared by owls, eagles and wolves?

MORE: Learn About Your Eye Color, Eye Shape & Anti-Aging Tips

From blue to green to hazel to brown and amber, our eyes really are the windows to our souls. Our pupils dilate when we're looking at someone we're attracted to, so fittingly, both females and males rate large pupils as an attractive quality. It signals someone who adores you!

QUIZ:
How Do You Feel About Your Eyes, and Your Face?

Click through the gallery to learn five scientific facts that you didn't know about eye color, and get pro makeup tips to make your orbs look brighter.