This is vision of HUMAN, BUTTERFLY, BEE, DOG, HORSE and BAT.
- Humans have trichromatic vision, they see Blue, Green, Red,
- Butterflies see UV (ultraviolet), Blue, Green, Red they are Tetrachromats
- Bees see UV, Blue, Green, they are trichomats
- Dogs are Dichromats, see only blue and yellow, but also can see some UV
- Horses are Dichromats, they only see blue and yellow
- Bats do not see color, but some are sensitive to UV also