That amount of time can make it hard to be certain to know if selection was actually involved in the evolution of a complex trait. Many creationists criticize selection saying it is powerless on the more complex traits. A simple example includes the flagellum on bacteria that assists in movement; it must have been created by something supernatural. The issue with this criticism is that there aren’t any traits that couldn’t have been impacted by selection. The fossil record shows the evolution of many traits which allows them to be placed in order of when the changes took place. The record allows for a somewhat accurate explanation for many of these
That amount of time can make it hard to be certain to know if selection was actually involved in the evolution of a complex trait. Many creationists criticize selection saying it is powerless on the more complex traits. A simple example includes the flagellum on bacteria that assists in movement; it must have been created by something supernatural. The issue with this criticism is that there aren’t any traits that couldn’t have been impacted by selection. The fossil record shows the evolution of many traits which allows them to be placed in order of when the changes took place. The record allows for a somewhat accurate explanation for many of these