When evolution skeptics want to attack Darwin's theory, they often point to the human eye ... the separate parts of the eye -- the lens, the retina, the pupil, and so forth -- since none of ...

They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than human eyes do. After the light passes through the pupil, it is focused by ...

Human eyes are actually spheres. The part that we can see is only just the front. That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye ...

Think you’ve seen it all? Not so, according to a team of American researchers who say they’ve discovered a colour that’s never been seen by the human eye before. It’s a bold claim ...

Your eyes might reveal more about your mental state than you realise. According to medical psychology experts, subtle changes ...

The new discovery followed an experiment where researchers in the United States had laser beams shone into their pupils. The results were published ... The results mean that olo can't be perceived by ...

Is color real? Does everyone see the same color green? How many colors can the human eye see? Color helps us to remember objects, influences our purchases and affects our ...

Like most human traits, blue eyes are determined by genes ... the ring that surrounds the black pupil in the middle of your ...