why are dogs colorblind?

Question

i have a dog i wanna know

Answer 1

Read the book "How Dogs Think" by Stanley Coren. It's probably at your local library if you don't want to buy it. It has very interesting info on canine physiology and goes into detail about their different senses (including sight). In a nutshell it has to do with the number and position of the rods and cones in the eye. They see mostly in shades of blue, green and gray. However their night vision is superior to humans'. It's a great book!

Answer 2

They are not exactly color blind , they are just red &green color blind. Meaning they can see other colors apart from just black and white ,like grey, blue, yellow, just not green and red.This is due to having only 2 cone types rather than 3 (light sensitive cells include cones and rods)in their eyes. As same in human colorblinds.So they r colorblind in human colorblind terms but they can see colors.

Answer 3

Yes dogs ARE color blind. Which means that they see in two colors instead of three exactly the same as some color blind people, They DO NOT see in black and white. The difference between a dogs eyes and ours is that a dog has fewer cones (collect color) and more rods (collect light) so a dog sees colors about like a color blind person, and sees at night about like a person using night vision goggles.

We see "VIBGYOR" (Violet, Indigo, Blue, Green, Yellow, Orange, Red)
dogs see "VIBYYYR" (Violet, Indigo, Blue, Yellow, Yellow, Yellow, and Red). The colors Green, Yellow, and Orange all look alike to dogs

Answer 4

http://www.uwsp.edu/psych/dog/LA/DrP4.htm

Check out this website--it'll tell you all you need to know. Dogs are actually red/green colorblind, but they do see colors contrary to what most people think. The site even gives a color comparison scale between dogs and humans.

Answer 5

There are two kinds of light receptors in the retina; rods for black-and-white, and cones for color. Dogs have few if any cones.
Black-and-white vision is better than color in low light conditions, so a dog's vision is more suited to darkness than a human's is. But color vision is more precise, given enough light. Birds have color vision (except for nocturnal birds). Their vision is excellent, while a dog's vision is more vague.
But a dog's hearing is excellent, and their sense of smell is phenomenal from a human's point of view, really amazing.

Answer 6

human eye can see color cause it has this thing in the eye (forgot term) that enables them to see color. But takes away brightness so we can't see in dark. But dogs don't have this "term" in their eye.Dogs can see really well in dark though.

Answer 7

they are colour blind as they lack cone cells