Humans and animals perceive colors quite differently due to variations in their visual systems. Humans are trichromats, meaning we have three types of cone cells that detect red, green, and blue wavelengths. However, many animals have different capabilities:
- Dogs and cats are dichromats, seeing primarily blues and yellows
- Birds have tetrachromatic vision, seeing four color channels including ultraviolet
- Butterflies can have up to 15 different photoreceptors
- Some shrimp species have 16 color receptors
This means many animals can see colors that humans cannot perceive, particularly in the ultraviolet spectrum, while others see a more limited color range than we do.