Neurobiological and molecular studies suggest a dichromatic colour vision in canine species. which appears to be similar to that of human red–green colour blindness. Here. we show that dogs exhibit a behavioural response similar to that of red–green blind human subjects when tested with a modified version of a test commonly used for the diagnosis of human deuteranopia (i. https://thegreensjunglebeautyshops.shop/product-category/nail-cream/