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
Lozenge camouflage nose which indicated his unit, "Jasta" 15. Only the wings and rudder of his Albatros were laid with lozenge camouflage. Similarly, Ernst Udet, the second-highest scoring German ace of World War I, painted his Fokker D.VII bright red with bold white stripes and large white lettering on the rudder reading ""Du doch nicht!!"" ("Definitely not you!!") His aircraft ineffectively retained its lozenge camouflage on the upper surface of the lower wing. Lozenge camouflage Lozenge camouflage was a military camouflage scheme in the form of patterned cloth or painted designs used by some aircraft of the Central Powers in the last