Add Yahoo as a preferred source to see more of our stories on Google. Your baby could start with blue eyes and be completely different by age 1. The first photos of your newborn might capture their ...

Doctors break it down.

Eye color is a complex genetic trait determined by pairings of genes passed on from each parent. Scientists once believed eye color was determined by a single gene, but advances in genetic research ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. They say the eyes are "the window to the soul" and there's certainly ...

Add Yahoo as a preferred source to see more of our stories on Google. A new type of cat coat color has officially been discovered. Named salmiak, or ‘salty liquorice,’ the cats have hair strands that ...

The most common types of color blindness, or color vision deficiency, are genetic. However, other types may develop due to injuries, eye diseases, health problems, and side effects of treatment.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: A new type of cat coat color has ...

A new type of cat coat color has officially been discovered. Named salmiak, or ‘salty liquorice,’ the cats have hair strands that start out black, and become white the further they grown from the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You’ve probably heard of spooky black cats, chaotic orange cats, and distinguished-looking tuxedo cats.