“They don’t need the red=green=blue cones whose luminosity functions enable the brain to construct millions of colors, because they do not have reason.”
Perception is one thing and reason is another.
Knowing the difference requires reason.
In humans, the age of reason is about seven; a factor that was somewhat evident in the six year old balloon boy’s classic slipup scene.
Peace ...
Reason, the ability to abstract the universal from the particular, requires the ability to distinguish and classify differences down the the gnats little behind.
Whereas a creature whose “vision” is designed to help it maintain stability and control, achieve reliable ground collision avoidance, and remarkable airborne intercept does not need millions of colors, just very good inertial navigation.
So the sensory requirements for a featherless biped differ greatly from a dragonfly.
Many of the moderns confuse knowledge and perception. As an old Belgian priest once told us, “a world where everything is based upon perception is a terrible place to live”.
Et cum spiritu tuo.