But, the neuroscientist adds, light that's reflected onto the eye from an object, such as a flower, is constantly changing. To perceive the flower or anything else, the brain must decipher that light. "If you can understand how something relatively simple like the bee solves these problems, then we can apply that to robotics," Lotto said. Developing a visual system that deciphers information, he added, "is the most significant obstacle facing robotics."
In the honeybee, four of the visual cells in each ommatidium respond best to yellow-green light (530 nm); two respond maximally to blue light (430 nm); and the remaining two respond best to ultraviolet light (340 nm), allowing the honeybee to distinguish colors (except red).