Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

Partly cloudy. The chance of a thunderstorm. Winds northwesterly 20 to 30 km/h tending northwest to southwesterly 15 to 25 km/h in the evening. Sun protection recommended from 8:00 am to 4:20 pm, UV ...