Physiological experiments have shown that they may have up to four different kinds of receptor cells, with different absorption spectra, giving them the possibility of up to tetrachromatic color vision, with sensitivity extending into the ultraviolet range
In tetrachromatic organisms, the sensory color space is four-dimensional, meaning that to match the sensory effect of arbitrarily chosen spectra of light within their visible spectrum requires mixtures of at least four different primary colors.
« Older JADED PUNK HULK HAS HILARIOUS OPINIONS ABOUT PUNK.... | All of a sudden, we looked up,... Newer »
This thread has been archived and is closed to new comments
Buy a Shirt