How do we know the certain way an animal sees their vision? Ie black and white etc?
In: Biology
We do not know how it *appears* to their brain, but we can study their eyes and understand how complex their vision is.
For example we have 3 different types of receptors to see 3 different colors of light or any combination of them, plus receptors for nighttime vision that give brightness but not color information in difficult (low light) conditions.
So animals with only one receptor can see only light or dark— white or black— if they have one fewer than us they could see some form of color but certain colors we can tell apart would mix together, much like red-green colorblindness that occurs when humans are missing one of our receptors.
And we can simulate this with pictures and descriptions but it doesn’t mean we know how their brains *perceive* the image, it just means we can make a reasonable comparison to the amount of detail and types of colors that we can see.
We don’t know how animals see for certain, just like how I can’t know you see exactly how I see.
However, by looking the the types of cells and how they are arranged in the eye, we can make a reasonable guess. Certain types of cells are associated with seeing detail, seeing red and green, etc.
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