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Camouflage

The various ways animals blend with their surroundings are called camouflage. For camouflage to be effective, the animals must remain motionless or nearly so. Grasshoppers can camouflage themselves by changing their colour. Their skin can be green when surrounded by leaves but will then turn brown when moving slowly on bark or on the ground. Other examples of animals that can camouflage themselves are the chameleon lizard and the ptarmigan, an arctic bird, which is brown in summer but becomes white in winter when snow covers the ground.