Daylight Saving Time: Only the government would believe that you could cut a foot off the top of a blanket, sew it to the bottom, and have a longer blanket. â
Cockatiels come in a variety of colors. The most common are gray, pearl, pied, and lutino. <br />Gray: Common gray body with white face or yellow face.<br />Pearl: Gray with yellow tips on their wings.<br />Pied: All yellow with orange cheeks.<br />Lutino: All white with orange cheeks.
Best Answer: interesting question because the answer is it depends ... different species have different pigment molecules in the nerve cells of the receptors. Certain snakes such as pit vipers are able to 'see' in infrared. Its shortest wavelength's color is infrared. Some insects and birds have molecules that are able to see into the ultraviolet. So for those species, the color of the shortest visible wavelength is ultraviolet. perhaps the most interesting aspect of this question is that the color of the shortest visible wavelength varies by individuals. There are genetic variations in individuals which modify the structure of the sensing molecule in the the nerves of the retina.