Cats have excellent night vision, but they cannot see in complete darkness. They have more receptors in their eyes called rods, which are sensitive to light, allowing them to see six to eight times better than humans in low light conditions, such as on a moonlit night. Their pupils also expand wider than humans, allowing more light into the eye. However, cats are not nocturnal animals, but rather crepuscular, meaning they are most active during the twilight hours like dusk and dawn. They have evolved to have great peripheral vision, which helps them spot any threats or objects of interest approaching from the side.