Humans and animals perceive colors differently due to variations in their eye structures. Humans are trichromats, meaning we have three types of cone cells that detect red, green, and blue wavelengths. However, many animals have different capabilities:
- Birds and some insects are tetrachromats, having four types of cone cells, allowing them to see ultraviolet light
- Most mammals are dichromats, with only two types of cone cells
- Dogs see primarily blues and yellows, with limited red perception
- Butterflies can have up to 15 different photoreceptors
These differences mean that animals may see the world in color combinations we cannot even imagine.