They seem like science fiction due to their high performance, some have a curious appearance or an unusual size and others are so anchored in the past that it is incredible that they have not evolved one iota. We are talking about the eyes of animals, on many occasions diametrically different from those of humans and always fascinating.
The tarsier , a curious primate that lives in Indonesia, has enormous eyes compared to its body . It sees exceptionally well in the dark and is an excellent night hunter. It is no coincidence and it is that the larger the eye and the cornea, the better the use of light.
Other animals that see perfectly in the dark are cats. The tapetum lucidum is a layer of cells located on or behind the retina that works like a mirror, reflecting the light that reaches the eye to send it to the retina and make the most of the light . Indeed, the eyes of cats are endowed with this shiny coat. You will be able to appreciate it when your cat’s gaze seems to glow in the dark.
It is curious how there are animals that have a horizontal pupil and others that have a vertical one . The horizontal pupil is related to the prey condition of the animal (goat, deer, horse) as it allows it to capture more light to the right and left and, therefore, detect possible predators. The latter, on the contrary, usually have vertical pupils, which are horizontally small and vertically large, with which they calculate distances, they have stereoscopic vision, that is, they unite the images they obtain from each eye into a single three-dimensional, and clear.
It is also surprising that there are animals that have a third eyelid, the cat, for example. This membrane, which can be transparent or translucent, has the function of protecting the eye and providing moisture without reducing visibility.
Next, we show you the incredible eyes of 15 animals. We anticipate that you are going to hallucinate.
