The term camouflage comes from French which means disguise.
Since ancient times, humans have used disguise techniques to hunt and avoid enemies.
Many animals, such as Chameleon and Sea Elephant, can change color to disguise themselves in the surrounding environment.
Besides color, shape and texture can also help in disguising themselves. For example, some species of fish have a body pattern that resembles a stone or algae.
During World War I, the army began to wear khaki and green clothes and equipment to disguise themselves on the battlefield.
Military aircraft are also equipped with stealth technology that allows them to look like ordinary objects on enemy radar.
Some species of insects, such as flies and grasshoppers, have wings that resemble leaves to disguise themselves from predators.
One of the disguise techniques used by many animals is hiding in the same place as the surrounding environment, such as between leaves or small stones.
Some animal species, such as crocodiles and snakes, can lie very quietly to disguise themselves in the surrounding environment.
Besides being used for military and hunting purposes, disguise techniques are also often used in art and fashion.