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 ... In older cameras, the photo-sensitive material was camera film. When the film absorbed light, a chemical change produced an image on the film, called the ...

For the first time, researchers developed stem cell-derived pig retinal cells in comparison with human retinal cells, ...