Numerous creatures wage a struggle to survive in their nests in
the sand. Some find the solution in changing colour; others hide.

Darwin’s theory is the story of the plants and animals that have been successful in the evolutionary process. In other words, the creatures that survive today, the ones that have managed to remain in existence by avoiding disease and predation. Those who succeed in perpetrating their species as weaker species die out have certain characteristics that help protect them, for example, a superior immune system or the ability to divorce themselves from the environment in which they live by hiding. Many underwater creatures have developed the ability to camouflage and conceal themselves as protection against their natural enemies. Some blend into their surroundings by changing their colour or shape in times of danger. Those that lack this ability pursue a simpler strategy for evading their enemy: hiding.