Many characters in the Dune franchise have a strange blue tint to their eyes, and it's caused by the galaxy's most valuable ...

Birds-of-paradise are even colorful in the dark, with feathers and body parts that glow a brilliant yellow-green under ...

Research has acknowledged that exposure to blue light can cause photoreceptor damage (photoreceptors are cells in the eye ...

When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection ...

Human eyes are actually spheres ... and the cones see the colours: red, green and blue, and all the millions of shades in between. The rods and the cones send information about shapes and colours ...