A male bird has a genetic mutation that influences its mating behavior. This male bird performs a ritualistic dance that is very
successful at attracting females of the species. The male bird passes this genetic mutation onto its offspring. Several generations later, almost all of the birds in the species exhibit this mating behavior
Mutations are a fundamental part of the process of evolution by natural selection. These are a random genetic modifications that occur on every organism - some are beneficial and others could be harmful or disadvantageous. Therefore, natural selection decides which mutations will stay on a population and which ones will be eliminated.
In this scenario, this mutation enables the male bird to carry out better mating rituals, therefore it would be considered beneficial as it helps the species to reproduce and survive. So, it will be passed on from generation to generation, making other individuals fit for survival.
