Dogs and cats are color-blind in terms of red-green photoreception
the verdict
SUPPORTED
the evidence backs this
confidence 83/100
Dogs and cats possess dichromatic color vision with two cone photoreceptor classes, effectively making them red-green color-blind compared to human trichromats.
Evidence for · 2
Assessment of Rod, Cone, and Intrinsically Photosensitive Retinal Ganglion Cell Contributions to the Canine Chromatic Pupillary Response.
2017 · cited by 19
This study evaluates canine retinal photoreceptors and chromatic responses, establishing the presence of dichromatic vision in dogs.
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More for · 1
In vivo electroretinographic differentiation of rod, short-wavelength and long/medium-wavelength cone responses in dogs using silent substitution stimuli.
2019 · cited by 7
This research details the specific short-wavelength and long/medium-wavelength cone classes in dogs, confirming their dichromatic nature characteristic of red-green color blindness compared to trichromats.