ultramarine

Via the Presurfer comes a thought provoking little piece with an abundance of other lessons and primers to explore from National Public Radio on sight and colour in Nature's kingdoms.

Of course, prior to the advent of vision as anything more acute than able to distinguish light from shadow, there was not any emphasis on what colour something was. Once, however, this feature evolved, it became terribly important and hues and shades developed at a galloping rate, in stride with mobility and strength of sight. The article goes on to tell how animals and plants synthesize pigments and what displays might convey to those who share their habitats. The fact that no higher animals can create true blue pigmentation, think blue eyes and feathers, and use tricks of refraction to give a blue appearance made me think about the Noble laureates who created a spectrally blue, and previously ellusive LED (light emitting diode) to combine with red and green to produce efficient white illumination.