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
Middle East Command Camouflage Directorate bombs being dropped on wooden railways by an undeceived enemy. Barkas noted that "camouflage men must be among the few otherwise sane beings who yearn to be bombed." The pioneering effort's success was achieved in a few weeks, amidst severe shortages of men and raw materials. The writer Julian Trevelyan recorded that During the Eighth Army's retreat across Libya in 1941, the camouflage officer and former film art director Peter Proud and the camouflage sergeant William Murray Dixon found themselves trapped in the port city of Tobruk. Proud quickly set up a camouflage unit, acquiring a section of Australian engineers,