Camouflage

#002
Camouflage : A way of hiding person/animal (especially soldiers/military/weapons) using paint or leaves so that they look like part of surroundings. Many living creatures use camouflage technique to survive.

In the below picture, you can see a frog hiding, and it look like a part of sourrounding.

Here you can see soldiers dresses in such a way the are hard to distinguish from surroundings.

 A rattle snake hiding in sand, to disguise its prey.