11. This species has been tested for colour vision using choice experiments that control for brightness. 12. Normal human trichromats require a mixture of three primary colours for every day colour vision . 13. Most notable of these are her involvement with his colour vision and viscosity of gases experiments. 14. Colour Vision was sired by Frankfurter Stutenpreis as a three-year-old in 2004.15. Nearly all daylight fish have colour vision at least as good as a normal human's. 16. Unlike many other carnivores they have colour vision , perhaps to help them distinguish ripe nuts and fruits. 17. Colour vision is perceived mainly by the macula, which is the central vision portion of the retina.18. Rows 1 4 of the midband are specialised for colour vision , from ultra-violet to longer wavelengths. 19. These results validated the existence of the V4-complex in humans as an area specialized for colour vision . 20. However, they now find that nocturnal geckos definitely have colour vision at night, as do certain moths.
