how do we know other species visible spectrums?

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how do we know other species visible spectrums?

In: Biology

Its inferred by the types of and numbers of Chromophores in their eyes like dogs only have blue and yellow chromophores so they see 2 tone like black and white ( even though technically the see yellow and blue. Basically you have to have the right structures to see each spectrum

I don’t know how it was done in reality but I’d assume you shine light of different frequencies at your test animal and check if you get a reaction?