this post was submitted on 25 Feb 2025
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I don't get it. Is the dog colourblind?
That's why throwing red toys in grass is not as visible as we think for them
I guess I should buy purple toys based on that chart. At least for throwing stuff in the grass.
I'm sorry. I'm just thinking about you throwing a purple stick, and your dog coming back with the 6 foot purple dildo from Saints Row.
An unexpected result. But I'm sure I could find a use for a 6 foot dildo.
I think blue is your best bet
All dogs are colorblind. they only have 2 types of cones so they can differentiate blue and yellow but still would potentially struggle with stuff like light blue vs dark blue. red, orange, green aren’t visible to them at all. It’s similar to red green colorblindness in humans but not exactly. They have much stronger low light and peripheral vision though
So they don't see in monochrome, like in the comic? Which makes the comic weird.
And when you call them colourblind isn't that only by human standards? Aren't all humans then colourblind by insect standards?
Yes, they see some color
Correct, calling them colorblind is a misnomer. Most insects also can’t see red though. They can see ultraviolet spectrum which is pretty cool
Trichromatic vision is primates (humans, apes, monkeys, lemurs) giving red and green
Birds, reptiles, fish, crustaceans often have tetrachromatic vision which gives more vibrancy to color. Some of these can also see the uv spectrum too
Fun fact: there are some people who have tetrachromatic vision. It’s a genetic mutation on the X chromosome so those born with 2 X chromosomes are far more likely to have it (~15% vs ~8% for xy). just having the mutation doesn’t mean you’ll have functioning 4th cone cells though. And it’s one of those “you were born this way so functionally you will always have seen the world this way” kind of things
There's a theory that Monet was able to see ultraviolet. Because of some surgery.
Yes. It's colloquial use though. Dogs are "colorblind" by comparison. But it's not like every dog has some flaw. They see exactly as they should be.
I'm sure some dogs are actually doggy colorblind. Like a dog that has a problem with their cones and might actually see in black and white only.
Spiders see in 64 different eyes. I only see with 2 eyes.
This is how spiders disappear so fast. They jump into the other dimension.
Dogs have dichromatic vision, meaning they can distinguish colors like blue and yellow, but they have trouble seeing colors like red and green.
Well no wonder I never see any dogs getting their drivers liscense!
But the comic is monochrome, not dichrome.
Because that's what we were told in my time, when I was young, long time ago, in ancient time, that dogs are seeing in black & white
Dogs cant differentiate red and green because they only have two types of color receptors (cones). Theyd percieve it similar to someone who is red-green colorblind.