Primates, including humans, have three cones and can thus distinguish three of the primary color phases, giving us trichromatic vision, or high color resolution.
Theoretical modeling of fruit spectra into the trichromatic color space of catarrhine primates yielded similar results.
Many species - including the trichromatic honeybee - have a kind of photoreceptor sensitive to the near-ultraviolet, outside the visible spectrum.
The general principle underlying the design of visual trichromatic colorimeters. may be briefly summarized as follows.
None of today's New World monkeys has trichromatic color vision - except for the howler monkey.
An important theory was put forward by Young in the 18th century and was developed by Helmholz to give the trichromatic scheme which states that there are three fundamental colours.
The human eye is trichromatic , as our color vision involves three distinct classes of cones.
People with trichromatic color vision see not only four primary colors (blue, green, yellow, and red) but also various intermediate colors between them.
The nocturnal origins of primates imposed constraints on certain sensory systems, namely trichromatic vision.
Why would the only monkey in South America to evolve trichromatic vision be the one that eats the least amount of fruit?