The theory of adaptation was a concept given by Charles Darwin which explains that an organism can survive a changing environment and will survive and the rest will cease to exist. This came to be known as the survival of the fittest. By the rules of adaptation of different changes take place when there is a change in the habitat, such as:Habitat Tracking: when an unwelcome change takes place in a living organism’s natural habitat, they go in search of finding a new habitat that is similar to their previous habitat.Extinction: when the organisms fail to find a new environment as their habitat where they can survive, the organisms cease to exist.Genetic change: This happens when organisms that have slightly different genes adapt better to the new, changed environment with access to resources and mating partners.