Through natural selection, different types of eyes have emerged in evolutionary history -- and the human eye isn't even the best one, from some standpoints. Because blood vessels run across the ...

The color of ones’ eyes reflects individuality- it depends entirely on the genetic make-up of the individual! The amount and type of color pigment in the iris defines eye color. In humans ...

Few people have spent time gazing into a sheep’s eyes, but if you have, you may have noticed something very strange about their pupils. Instead of being round, as is the case with humans ...

Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

New York, Jan 2 (IANS) The pupil of the eye is key to understanding how, and when, the brain forms strong, long-lasting memories, according to a mice study. Our eyes are more than just windows to ...

Eyes are so intricate ... including mammals. It is based on two types of protein: opsins, which change shape when light strikes them, and ion channels, which respond to the shape-shifting by ...