Well concealed

Animals can adapt to their natural habitats. The adaptation almost always involves as much camouflage as can ensure that the animal is not easily visible to its enemies or competitors. The best-known example of this is the chameleon, which can change its color according to its immediate surroundings. A number of mammals, such as the mountain hare or the polar fox that lives in the northern regions, have adapted themselves tot he changing seasons by altering the colour of their bodies to match the surrounding hues. During summer in the tundra region, most animals have a brown skin, which helps them to camouflage well in the treeless, grey-brown surroundings. In winters, they have a white skin and can hardly be detected in the snow.