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

Like fingerprints, no two human eyes are alike. The pattern of your iris is completely unique, even among identical twins. The eye’s eyelashes help protect against debris, while the blink reflex ...

Close your eyes right now, and see whether or not there are any patterns dancing there on the back of your eyelids. Chances ...