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Striated frogfish uses several camouflage methods

A variety of camouflage methods may be employed by animals and objects of military interest in order to remain unnoticed. These methods include the use of countershading and disruptive patterns as in the bushbuck (pictured), as well as less well-known methods such as transparency, counterillumination, and self-decoration with materials from the environment. Some animals make themselves hard to detect by concealing their shadows or by having an irregular outline, sometimes with elaborate projections. Others use feature disruption to hide giveaway elements such as eyes, and even active camouflage, changing their coloration and patterns dynamically as they move. Some others, both predators and prey, hide in plain sight by resembling leaves, flowers, or other objects of no interest to the observer. In the Arctic, both animals and soldiers use white camouflage for the winter season. (Full list...)