How do humans understand how an animals vision works?

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How do humans understand how an animals vision works?

In: Biology

Humans know how animal *eyes* work because we’ve taken them apart and looked at what all the individual pieces do.

We don’t actually know exactly how *vision* works in any species, even our own, since that seems at least partly subjective and involve more neurons working together than we can easily measure or simulate. We do have a very good idea in general, but there are some specifics such as “what does the colour blue look like to someone else” that we really don’t even know how to start to answer.

Dissection of the eye to get to the nerves inside the eye. Rod nerves being for light, cones for color, and they can tell what cone types for which colors in the spectrum.