Human color vision is based on three types of cone cells in our retinas (trichromatic vision), detecting red, green, and blue wavelengths. However, many animals perceive color quite differently:
- Birds and some insects have tetrachromatic vision, meaning they can see UV light in addition to our visible spectrum
- Dogs and cats are dichromats, having only two types of cone cells, making them partially colorblind compared to humans
- Some marine mammals only see in various shades of blue due to their deep-water environment
This variation in color perception has evolved based on each species’ survival needs and environmental adaptations.