"the Males among the påfågelspindlar use of colors to attract a female. A not entirely uncommon strategy in nature. The more intense the colors, the better."
"One way to enhance the colors further is to make the adjacent areas as dark as possible. It turned out that the black spots of the påfågelspindlar consists of a collection of densely packed small spheres, the researchers call for micro lenses, and which reflects less than 0.5% of the incident light, which deceives the eye and get the adjacent colors that appear to almost vibrate."
"These micro lenses is not very different from those found on today's solar panels, the researchers write in the Proceedings of the Royal Society B. the micro lenses can also be found in the almost ridiculously colourful paradisfåglarna where they probably have the same function."