Can they see in color?

Most people assume that cats, like dogs, have only a monochrome view of the world. You might remember from science class that eyes have two types of sensory cells: rods sense shape and cones sense color. (The old memory trick for sorting out which is which is to remember that cones and color begin with the same letter.)

Cats do have cones in their eyes, two different types, in fact, one for blue and one for green. That doesn’t exactly give them a full-color view of the world, but it does mean that they do have some sense of color.