do cats have night vision?

     

      Cats weak vision, and you can not distinguish colors well. And it relies mostly on the sense of smell, but they are characterized by a strong vision for the following system. It is also characterized by the ability of the best man to see a visual field wider, due to the place of their eyes in the head.

Cats vision may well in the dark, but you can not see in the deep darkness, and their ability to see in the dark superiority of the human capacity six times, because the number of sticks, a light receptor cells in the retina of the eye cats outnumber those in the retina of the human eye of six to eight fold, so they need to sixth light that the human need to be able to see in the dark, is the cat's eye is very sensitive to light, but she can open the iris is much larger than human, enabling it to enter larger amounts of light into her eyes, and becomes a field of vision has wider field of vision in humans

Because her eyes are different from our eyes, as her eyes iris completed when they are in the dark, and so they can see things easily.

     When cats are sitting in the dark, we do not see her body, but we see her eyes shine no matter how dark. Also, the tiger eyes, lion, and others also shining in the darkness. The question that arises is: Why do some animals eyes shine in the dark, while humans are shining eyes?

     Many of the animals have the ability to see impressive at night. Secret in that they have a small mirror in the bottom of the eye. The eyes of these animals are covered by a very thin layer of crystalline material particular reflect the light that falls on them, and be a reflection of this light the cause of the luster eyes. At night, this crystal surface reflects the least amount of light falls on them, and so we see the eyes of these animals are shining in the darkness very clearly, so-called "nocturnal animals."

     It has been observed that the color of the luster varies from animal to another, which depends on the number of blood vessels in the eye. Whenever taken the gloss red color increased in number, and if it has become less color white or pale yellow.

About Cats:

• ranges from the weight of the cat between four and seven kilograms, and live cats lived up to fifteen years, and called her voice meow, one of the more animals fertility, and reaches for her pregnancy to almost nine weeks, and put between 2 to 9 cats at a time.

• feline skeleton of 240 greatness consists, the cats have 30 tooth In her mouth, a hunter animals are hunting some animals such as rats and some birds, and have sharp claws used in self-defense and baiting climbing, cats carnivores, fish is her favorite food, to have their food moderate heat.

• sleeping cats hours are very long compared to other animals, where up hours of sleep to 16 hours a day; so they spend most of the old sleeper, a sedentary animals, and whatever the status of the cat when he fell from the top, it always falls on the ground on all four feet. The cats feels the darkness by the mustaches on either side of the mouth, and feel the air movement and temperature, indicating the tail of a cat on the mood of where to enjoy or fear, and cats can distinguish the tone of the human voice learn whether he was angry or happy.