Cats, on the other hand, have a different reason for being such good jumpers. Cats faces are flat between the eyes, a rare feature in the animal world, which makes it easier for them to work together. As a result, a cat can focus sharply and three-dimensionally, an ability that allows it to visually judge distances with great accuracy before jumping. Their eyes are located on the sides of their head, which enables them to see in all directions. Rabbits, frequent preys for predators, are always on the alert, and their eyes are located in the best place to help them see their enemies.
Cones detect colors in bright light, including black, white, and gray.
Rods provide sharp vision in dim light, but do not detect colors. Night creatures have more rods than cones, which provide them with sharper vision at night but with only shades of gray. Also, to assist these creatures in the dark, they have a special layer in the back of their eyes, called the tapetum, which acts as a mirror when light passes through it. If the rod does not detect the light during the first passing, the tapetum reflects the light back to the rod, thus giving the rod a second chance to pick up on the light and see an image. It is this layer that makes some animal s eyes shine in dim light.