“Flight supposedly arose several times according to the theory of evolution. The first time this happened was allegedly 400 million years ago in insects.5 Evolutionists do not have a clear concept about how this happened. However, what they do know is that the activities of dozens of genes are necessary for flight. In their thinking, all that complexity must have gradually arisen via unplanned, unguided, goal-less mutational events over deep time. These genes influence a host of things vital to flight, including muscle and nerve formation, and also affect sugar and energy metabolism.”
Read more about it here: https://creation.com/rails-derail-evolution
