Despite the popular myth that bulls become enraged by the colour red, they are colour-blind to it. Bulls have dichromatic vision, meaning they only see shades of blue and yellow
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Owls have a high number of rod cells in their retinas, which help them see in low light but reduce their ability to distinguish colours.
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Snakes rely more on their ability to detect heat and movement than on colour vision
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Bees see the world in shades of blue, green, and ultraviolet, which helps them locate nectar-rich flowers
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Hippos are thought to see mostly in shades of blue and green. Their eyes are adapted to their semi-aquatic lifestyle, allowing them to see well in murky water.
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Deer are red-green colour blind, meaning they cannot differentiate between red and green shades
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Seals have monochromatic vision, meaning they see the world in shades of gray
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Like seals, sea lions also have monochromatic vision and rely more on brightness and contrast than on colour
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Cats have limited colour perception. They see mainly in shades of blue and green but struggle to distinguish between reds and oranges
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Dogs also have dichromatic vision. They primarily see shades of blue and yellow but cannot distinguish between red and green