Sentences with phrase «called tetrachromats»
Theoretically, these so - called tetrachromats can identify subtleties of shading that are indistinguishable to the rest of us; however, this phenomenon has been hard to confirm experimentally.
https://www.scientificamerican.com/
It's possible these so - called tetrachromats see a hundred million colors, with each familiar hue fracturing into a hundred more subtle shades for which there are no names, no paint swatches.