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 ...

The human eye is a simple, but extremely robust, optical instrument. Analysis by sophisticated wavefront-sensing technology and customized ray-tracing has now revealed that the eye is actually an ...

Do you have blue eyes? We talked to experts to discover curious facts about baby blues, including whether your biological family is bigger than you ever imagined.

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 ...

In their study, the team asked people to rate photos of non-human primates with altered eyes. Their results revealed that animals with bright irises and large pupils were rated as more ...

They're often described as the 'windows to the soul'. But a new study suggests that our eyes can convey more about us than we previously thought. Researchers from Leiden University have revealed ...

It is likely that many of the human beings who inhabit the planet have never considered the physical circumstances that differentiate us from other living beings that walk the eart ...

It is known that while one sleeps, the brain 'consolidates' memory by integrating new information learnt during the day with previous knowledge. Critical to this is the process of 'memory replay', in ...