Species can settle . This happens when the species’ environment is stable for many generations. Faced with an unchanging niche, the species will start to lose genetic diversity as the blind process of natural selection weeds out genes that aren’t perfectly optimal for that niche. The result will be a relatively homogeneous gene pool and a species

As each generation contends with its environment, the struggle for the resources needed for survival means that any traits that promote survival will likely get passed on. Thus, over time, the frequency of traits within a population changes as a response to environmental conditions. This