Dogs see differently than humans. The reason lies within the eye. In the eye are light receptors called cones and rods. Cones help us distinguish different colors, while rods help us see in dim light.

The cone and rod photoreceptors are extremely sensitive ... we can non-invasively track how individual photoreceptors react to light. It's like having a microscope that works directly in the ...

Light passes through the eyeball to the retina. There are two main types of light receptors called rods and cones. Rods are more sensitive to light than cones so they are useful for seeing in dim ...