Any animal’s eye color is determined by its levels of two melanin pigments: eumelanin, which makes brown-black, and ...

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

Red is the rarest hair color, but to understand why that’s the case, you need a basic grasp of the science. There’s a lot ...

Despite Renée Zellweger's stunning sage-green gown, all eyes were on the actress's engagement finger during the Bridget Jones ...