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Maroc Maroc - WN.COM - Science - 15/Feb 14:05

Why do cats’ eyes glow in the dark?

One foggy night in 1933, a businessman named Percy Shaw was driving home from the pub in Yorkshire, England. The road was twisty and hard to see. Suddenly, two bright dots flashed back at him from the roadside. Percy slammed on the brakes. The glowing dots belonged to a cat—and they probably saved his life. If he’d kept driving, he could have gone straight off the road. That’s when Percy got his eureka moment. What if roads could “shine back” at drivers the same way cats’ eyes do? Within a year, he had invented Catseye® reflectors—those studs you still see embedded in roads today. They bounce your own headlights back at you, helping you see where you’re going in the dark. But why do cats’...

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