Earth's oceans, known for their deep blue hue, could one day undergo color shifts, say scientists. A report based on a study ...

Iris tattooing and implants can give you a whole new look, but experts urge caution due to complication risks.

As the adage goes, the eyes are the windows to the soul. The answer is a hard no, according to the American Academy of Ophthalmology, which recently issued a warning against "eye color-changing ...

Of all its corporeal quirks, the chameleon is most defined by one, noted as far back as Aristotle: color-changing skin. It’s a popular myth that chameleons take on the color of what they touch.