Cats can see color—but not the same way humans do. Here’s the truth about how feline vision works and how it differs from ours. As much as we like to impose human personalities on our pets, cats are ...

Scientists have some lab mice seeing red. The animals had their vision genetically upgraded and can now see colors normally invisible to rodents. The finding, detailed in Friday's issue of the journal ...

Color blindness means your eye doesn't see color the way it should. Your eyes see differences in the light that comes in. It’s a bit like the way we hear sounds as being low or high. This is called ...

Protanomaly is a common, X-linked abnormality of color vision. Like people with normal color vision, protanomalous observers are trichromatic, but their ability to discriminate colors in the red–green ...

Illustration of the silver spinyfin (Diretmus argenteus)—the vertebrate with the highest number of opsin genes. Image: (Alexandra Viertler, University of Basel) A newly discovered visual system in ...

1. The Evolution and Diversity of Pineal and Parapineal Photopigments -- 2. The Evolution and Function of Melanopsin in Craniates -- 3. The Evolution of Non-visual Photopigments in the Central Nervous ...

A new energy-generating, light-absorbing pigment called proteorhodopsin is widespread in the world’s oceans, say scientists funded by the National Science Foundation (NSF) and affiliated with the ...