types of cone cell in the eye. Organisms with tetrachromacy are called tetrachromats. In tetrachromatic organisms, the sensory color space is four-dimensional...

that are heterozygous for anomalous trichromacy (i.e. carriers) may be tetrachromats. These females have two alleles for either the OPN1MW or OPN1LW gene...

three, Mrs M - an English social worker, and the first known human "tetrachromat" - sees rare subtleties of colour. Mark Roth (September 13, 2006). "Some...

between retinal (or weak) tetrachromats, which express four cone classes in the retina, and functional (or strong) tetrachromats, which are able to make...

intelligent towards humans and other hawks. Hawks, like most birds, are tetrachromats with four types of colour receptors in the eye. Unlike some birds, but...

insects, as well as birds, see into the ultraviolet, because they are tetrachromats and can use this information to tell when a banana is ready to eat....

visible gamut. By comparison, trichromats need three primary colors, and tetrachromats need four. Likewise, every color in a dichromat's gamut can be evoked...

entire gamut, there is only one scholarly report of a functional human tetrachromat, for which trichromatic color models are insufficient. The perception...

able to distinguish a range of colors similar to that perceived by tetrachromats. House mice also rely on pheromones for social communication, some of...

distinguish between four different primary colors classifies them as tetrachromats. Goldfish have one of the most studied senses of hearing in fish. They...

resembles that of simians. Some of the primates' vertebrate ancestors were tetrachromats, but their nocturnal mammalian ancestors lost two of their four cones...

on its nose. It has been found that birds and some other animals are tetrachromats and have the ability to see in the ultraviolet down to 300 nanometers...

somewhat broader color gamut. Some women have tested as functional tetrachromats but they are exceedingly rare.[citation needed] Less rare are "color...

and sometimes bi-colored stretched weavings were first exhibited in Tetrachromat, and grew more intricate and architectural in the following years. They...

these birds may be brighter to the birds themselves since birds are tetrachromats and can see colours in the ultraviolet range that are invisible to humans...

S2CID 4328439. Mark Roth (September 13, 2006). "Some women who are tetrachromats may see 100,000,000 colors, thanks to their genes". Pittsburgh Post-Gazette...

Pittsburgh found Maratus volans have four different photoreceptors (tetrachromats) allowing them to see red, blue, green, and ultraviolet and also resolve...

vertebrates. They have a higher number of photoreceptors, and most birds are tetrachromats. The only exception are penguins, which have only three functional opsin...

can also be used hypothetically to "upgrade" typical trichromats to tetrachromats by introducing a new opsin genes. This begs the ethics of designer babies...

red flower color for many plant species. The pollinator, birds, are tetrachromats, and one type of the single cone has specific opsin to detect long-wavelength...

(Actinidia deliciosa), and apples (Malus domestica). Eristalis are tetrachromats, with strong colour differentiation and preferences towards yellow flower...

particularly noticeable by (and therefore attractive to) birds, with their tetrachromat vision. The authors offer the following plausible explanation for the...

Modern birds whose feathers contain melanosome-like structures are tetrachromats. Tetrachromacy refers to the possession of four types of cone cells...