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 ...

Copper eyes in cats are a deep orange colour that can look like it has light brown in it. These are rare and striking ...

These spikes then drive the brain of the host life form. Billions of years of natural selection has produced several types of eyes, with some better than others. It would be an honest mistake to ...

This article will explore symptoms, types of retinal disease, risk factors, prevention, and when to get an eye examination. With retinal disease, any part of the retina can be affected.

Instead of a film, you have a retina in the back, with photoreceptor cells, and this makes the eye a very fascinating organ. Furthermore, various animal groups have evolved very different types of ...

Our eyes may also help healthcare providers detect warning signs of certain cancers. Squamous cell, basal cell, and melanoma ...