Pharaoh cuttlefish they can show a mottled white and brown color, with a center circle of brown. The mechanism for color is the same in the Pharaoh cuttlefish as it is in other cuttlefish. This colour-changing function is produced by groups of red, yellow, brown, and black pigmented chromatophores above a layer of reflective blue and green tinted iridophores and leucophores, with up to 200 of these specialized pigment cells per square millimeter. These sacs of color are controlled by rings of muscle around the sac. The cuttlefish expands and contracts these muscle rings in order to show different colors. It is
Of the Blue Colour of the Sky in producer Dave Fridmann's Tarbox Road Studios, a converted Amish barn in Cassadaga, New York, through May the following year. Bassist Tim Nordwind described the process of the studio sessions as a midpoint between the slick production work done on "OK Go" and the emphasis on live takes with the recording of "Oh No". "Of the Blue Colour of the Sky"'s accompanying booklet presents the album as a concept based on an unnamed passage from "The Influence of the Blue Ray of the Sunlight and of the Blue Colour of the Sky" by General A.J. Pleasonton. The title of this