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
Yellow-collared lovebird lightening of the darker feathers, most noticeable in the wings, and face. It was first noted from Green (Wild) coloured parents, & originally called ""Yellow"". This new colour was soon built up in numbers by passionate aviculturelists, and once secure was bred to Blue coloured birds. The result was then known as ""White"", but we now call this combo a Dilute Blue. Yellow-collared lovebird The yellow-collared lovebird ("Agapornis personatus"), also called masked lovebird or eye ring lovebird, is a monotypic species of bird of the lovebird genus in the parrot family Psittaculidae. They are native to northeast Tanzania and have