Even though we have only three color pigment types, the most recent split set us up with a keen ability to discriminate more shades of green than any other color. We can distinguish tens of thousands (some even argue hundreds of thousands) of shades of green, and we have those early salad-eating primates to thank for this now-much-less-necessary skill. These days it’s maddening because it means there are way too many color swatches available when deciding which exact green to paint the guest bedroom.
