In vertebrate retinas, specialized photoreceptors responsible for color vision (cone cells) arrange themselves in patterns ...
Reach up and turn around - great! The girl tries to make herself into a cone shape, and an image of a cone appears. A second girl starts to sing and other cones appear as she mentions them.
Humans rely on sight, which is primarily mediated by three color-sensing cone types, to perceive the world in a kaleidoscope of hues. Blue cones develop earliest, followed by the morphologically ...