Apparently this is a good representation of the world that dogs see as the cones in their eyes only allow them to see blue and yellow. This is why your dog might have a hard time finding a red ball in a field full of green grass even though it would be very easy for humans to find it. The two colors are simply indistinguishable to them. I believe cats and mice are also colorblind in the sense that they can only see blue and green. If you are ever considering making software for animals, you should definitely put some thought into your color palette.
kujjwal
I'm curious, is the case with many animals that their cones don't intake or process these other colors? Or are these other colors "scaled" to match their species' color palatte? (i.e. dogs see red very similar to green or a scaled version of green, or do they see it the same as green)
AnikethPrasad
Is there a reason dogs have evolved to only have cones which let them see blue and yellow?
aravmisra
@Aniketh, the simple answer is Dogs only have 2 cones! https://spca.bc.ca/news/how-dogs-see-colour/#:~:text=Human%20eyes%20have%20three%20different,How%20dogs%20see%20colour.
yykkcc
This reminds me of guide dogs. I forgot where I saw it. Some people say that guide dogs guide their owners by identifying which one of the traffic lights is lightning. This made me curious about the training of guide dogs. Dogs can quickly learn some commands through rewards, but for a task like judging traffic lights, which is relatively difficult and has low error tolerance, I am curious about the specific training process.
antony-zhao
On the topic of colors for animals, mantis shrimp are an interesting case as I've heard since their range is far bigger than a humans. "Humans can process three channels of colour (red, green and blue), while mantis shrimps perceive the world through 12 channels of colour, and can detect UV (ultra violet) and polarised light, aspects of light humans can’t access with the naked eye." https://www.science.org.au/curious/earth-environment/all-eyes-reef. It's interesting to imagine how different the world might look depending on the animal.
el-refai
I do wonder what the evolutionary advantage is for so many channels of color in the mantis shrimp. This seems like a lot of investment for what I'd assume are very rapidly dwindling returns. One thing though that always surprised me is why more animals aren't able to see in the infrared range since being able to see warm blooded predators just using infrared seems extremely useful. Perhaps moreso than the extra colors we get from red green blue cones.
Apparently this is a good representation of the world that dogs see as the cones in their eyes only allow them to see blue and yellow. This is why your dog might have a hard time finding a red ball in a field full of green grass even though it would be very easy for humans to find it. The two colors are simply indistinguishable to them. I believe cats and mice are also colorblind in the sense that they can only see blue and green. If you are ever considering making software for animals, you should definitely put some thought into your color palette.
I'm curious, is the case with many animals that their cones don't intake or process these other colors? Or are these other colors "scaled" to match their species' color palatte? (i.e. dogs see red very similar to green or a scaled version of green, or do they see it the same as green)
Is there a reason dogs have evolved to only have cones which let them see blue and yellow?
@Aniketh, the simple answer is Dogs only have 2 cones! https://spca.bc.ca/news/how-dogs-see-colour/#:~:text=Human%20eyes%20have%20three%20different,How%20dogs%20see%20colour.
This reminds me of guide dogs. I forgot where I saw it. Some people say that guide dogs guide their owners by identifying which one of the traffic lights is lightning. This made me curious about the training of guide dogs. Dogs can quickly learn some commands through rewards, but for a task like judging traffic lights, which is relatively difficult and has low error tolerance, I am curious about the specific training process.
On the topic of colors for animals, mantis shrimp are an interesting case as I've heard since their range is far bigger than a humans. "Humans can process three channels of colour (red, green and blue), while mantis shrimps perceive the world through 12 channels of colour, and can detect UV (ultra violet) and polarised light, aspects of light humans can’t access with the naked eye." https://www.science.org.au/curious/earth-environment/all-eyes-reef. It's interesting to imagine how different the world might look depending on the animal.
I do wonder what the evolutionary advantage is for so many channels of color in the mantis shrimp. This seems like a lot of investment for what I'd assume are very rapidly dwindling returns. One thing though that always surprised me is why more animals aren't able to see in the infrared range since being able to see warm blooded predators just using infrared seems extremely useful. Perhaps moreso than the extra colors we get from red green blue cones.