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scary demon cat

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Uploaded by on Jun 1, 2007

my demon cat

why the eyes of a cat glow:

copy/paste from infoplease.com.


Cats, dogs, and many nocturnal creatures appear to have glowing eyes because the back of their eyeballs include a special reflective layer called the tapetum lucidum. This helps animals (cats in this case) see better in low light by working like a mirror on the retina to reflect the light back through the eyes, giving them a second chance to absorb the light. The colors seem more visible at night because the pupils are dilated wider than during the day, allowing more of the tapetum lucidum to be visible.

Humans don't have this layer. That partially explains why when you get your developed photographs back the subjects have red spots in their eyes. This is caused by the light from the flash traveling through the pupil and illuminating the blood-cell rich retina at the back of our eyes.

The secret behind so-called "red-eye-reducing cameras" is that they use two quick flashes instead of one. The theory being that the first flash will cause the subject's pupils to restrict and let in less light, while the second will be used for the actual picture.

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  • likes, 57 dislikes

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Uploader Comments (weeedster)

  • How?

  • @spideyclone32 the camera phone i had at the time had a light right above the lens. i just turned that on and started recording.

  • stupid cat

  • @thejordan854 why watch the video if you don't like cats?

  • you can buy this toy cat on eBay for only 9.99.. #LOL

  • @adikryan2341 lol

Top Comments

  • God-cat saves only the righteous ;<

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All Comments (150)

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  • ender cat

  • umm it has nighttime visison whcih causes the reflects which helps them see at night

  • no esta endemoniado sino que algunos animales producen lus en la noche como el tigre o el gato

  • JBT!!!!!!!

    

  • Lol the new cat flashlight! Only in your next electronic shop!

  • hehe, i like it :)

  • is that original clone cat XD...

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