0
There are two basic differences. The first is in the shape of the iris; the human iris is circular when contracted, while the cat's iris is the characteristic vertical slit when nearly fully closed. The second difference is that the cat's eye has a reflective surface behind the retina. This membrane, the tapetum, reflects light back through the retina a second time, basically giving the vision cells a second chance to see it, and thus making them more sensitive. A side effect of this tapetum is that light reflects back out of the cat's eyes if it is looking at a light source, which can make the cat's eyes seem to glow.
Nobody knows why the iris shape is different, but while a pinhole can make an entire image sharper, a slit will cause an image to be sharper only in the direction perpendicular to the slit, so in bright sunlight, a cat will be able to resolve motion left and right much better than up and down. This may assist the cat in hunting at ground level during daylight hours. The tapetum is quite clearly an adaptation for hunting at low light levels, a benefit to the cat who is, in the wild, nocturnal.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agobecause we are awsome
Add your answer:
Earn +20 pts
What color eyes to cats have?
They are the same colour colour as humans eyes!
How do cats eat with humans?
cats can interact with humans by waging their tails, purring, or even looking at you with big eyes.
How is it with other colored cats their eyes are green but when it comes to orange cats their eyes are orange?
It is just a genetic trait of their species. Not all orange cats have orange eyes, but it is the most common. Cats can have eyecolours as wide in variety as humans.
How is a cats digestive system the same as a humans and how is it different to a humans?
== ==
Give an explanation for the different adult dental formulas in the cats and humans?
Cats and humans teeth are different because of the types of food we eat. Cats are meant to be hunters.
Why do cats rely on sight at night?
They have reflective eyes which (unlike humans) does not blind them
Can cats move their eyes?
Yes. Cats hunt largely by sight. Cats have far better night vision than humans do.
Do cats have some of the same bones that humans have?
Yes, cats have many of the same bones that humans have, although the size and some of the specific shapes are different.
Are a humans two eyes the same?
no every eye is different no eyes are the same not even your own eyes.
Are cats eyes cats eyes?
Yes, Cats eyes, are 'cats eyes' although their eyes aren't the same as maybe the marble 'cats eye', only in bright light- i suppose they are just eyes though
Can cats see under its nose?
No they cannot because their eyes are above their noses, just like humans.
Does Revolution for cats also work on humans?
"No, Revolution for cats is not appropriate to apply on humans. Humans and cats have very different skin, and it may in fact harm a person who attempts to use this product. Humans should never use any product designed specifically for animals."
