Camouflage the peacock flounder, squid and octopus actively change their skin patterns and colours using special chromatophore cells to resemble their current background, or, as in most chameleons, for signalling. However, Smith's dwarf chameleon does use active colour change for camouflage. Each chromatophore contains pigment of only one colour. In fish and frogs, colour change is mediated by the type of chromatophores known as melanophores that contain dark pigment. A melanophore is star-shaped; it contains many small pigmented organelles which can be dispersed throughout the cell, or aggregated near its centre. When the pigmented organelles are dispersed, the cell makes a
Buff (colour) century, the traditional colour of formal dress boot uppers was often described as "buff". Clothing depicted on John Bull, a national personification of Britain in general and England in particular, in political cartoons and similar graphic works, has often been buff coloured. Bull's buff waistcoats, topcoats, trousers and boot uppers were typical of 16th- and 17th-century Englishmen. Buff is a traditional European military uniform colour. Buff has good camouflage qualities as sand, soil, and dry vegetation are buff in many areas. The term "buff coat" refers to a part of 17th-century European military uniforms. Such coats were intended to protect