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.

Inside the retina, there are millions of special sense receptors called rods and cones. The rods see the shapes of things, picking out black, white and shades of grey, and the cones see the ...

The retina is home to two different kinds of light receptor cells—rods and cones. (Both are named after their relative shapes.) Cones work in bright light and register detail, while rods work in ...

BY DR RICHARD AYAHBlack and white, they say are obvious. It is clear when something is black, that it is not white. That is how people argue. The assumption is that there is a common understanding of ...

Can cats see well at night? What about at a distance? Can cats see color? And if so, which ones? Many cat parents don’t realize their cat’s visual acuity differs from their own. Learning more about ...

The two types of photoreceptor cells are known as rods and cones. Rods are responsible for peripheral and night vision. They detect brightness and shades of gray. Cones are responsible for day ...