Although blue eyes are considered quite rare among most dogs, you're more likely to seem them occur in these breeds.

Albinism keeps the body from making enough of a chemical called melanin, which gives eyes, skin, and hair their color. Most people with ocular albinism have blue eyes.

This is because the eyes contain a wealth of information about the body's health. Retinal imaging can help to detect signs of diseases such as Alzheimer's, Parkinson's, and multiple sclerosis .

According to Healthline, 45% of Americans have brown eyes, 27% have blue eyes, 18% have hazel eyes and 9% have green eyes. That means there are tens of millions of blue-eyed people in the U.S. alone.

Blue eyes have been around for at least 7,000 years but we still don't know exactly why they evolved. Brad Pitt has them, Paul Newman had them — but when it comes to the human population as a ...

A small study in 2016 of 192 babies at Stanford University School of Medicine found that about 63 percent were born with brown eyes, about 21 percent with blue, 6 percent born with hazel or green ...

From iconic historical figures to Hollywood stars - blue eyes have always been 'in'. Yet, few will have guessed they originated in this small corner of Europe.