Question:

Why do dogs and cats and animals like that have flashy eyes ???

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do they use that to scare their enemies or preys or something

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  1. certain animals' eyes glow very brightly because their retina has a reflective layer called the tapetum. The tapetum improves their night vision by doubling the amount of light that hits retinal cells, and by getting rid of diffuse light inside the eye by throwing it back out through the pupil so bright moonlight won't cause glary washed-out nightime images.


  2. They have a layer of reflective cells at the back of the eye called the tapetum lucidum. This reflects light back into the eye when it has already entered once, effectively doubling low levels of light - this helps these animals see in the dark.

  3. They have reflective cell in thier retinas which allow them to see better in the dark.

    People also have reflective cells in our retinas, but not as many, so our night vision isn't as good

  4. because they have mirror like things in their eyes that reflect light.

  5. They have large pupils in the dark and reflective areas in the back of their eyes. When light enters from the front it is easily reflected outwards for you to see. It is the same process that accounts for seeing red eye in flash pictures of people.

  6. These animals have a reflective coating behind their ratina, which collects any small amount of light and helps them see in the dark.

    For more Info: http://cats.about.com/cs/eyesvision/a/ca...

  7. They are nocturnal so there eyes are different and react to light unlike our eyes. It helps them detect light in the dark and helps them see in the dark.

  8. Cause they can see in the dark. It's to do with them being more reflective.

  9. No, their eyes are designed to see in the dark much better than ours can.  Their eyes reflect light and magnify it, which is what causes them to glow when hit by light.

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