Active camouflage the surface, so when marine animals are seen from below, they appear darker than the background. Some species of cephalopod, such as the eye-flash squid and the firefly squid, produce light in photophores on their undersides to match the background. Bioluminescence is common among marine animals, so counterillumination may be widespread, though light has other functions, including attracting prey and signalling. Color change permits camouflage against different backgrounds. Many cephalopods including octopuses, cuttlefish, and squids, and some terrestrial amphibians and reptiles including chameleons and anoles can rapidly change color and pattern, though the major reasons for this include signalling, not
Disruptive Pattern Camouflage Uniform Disruptive Pattern Camouflage Uniform Disruptive Pattern Camouflage Uniform (DPCU), also nicknamed Auscam or jelly bean camo is a five-colour military camouflage pattern used by the Australian Defence Force. It was developed and tested during the late 1970s and early 1980s. The DPCU has been replaced in the Australian Army by the Australian Multicam Camouflage Uniform (AMCU), which uses an Australian-designed multi-camouflage pattern based on the US MultiCam. The first uniforms using the disruptive pattern camouflage (called Disruptive Pattern Camouflage Uniform – DPCU) were issued in 1983 for test purposes. In 1986 the final production version was introduced with a number