Which of the following examples shows how scientists continue to investigate Darwin's idea that species change over time by natural selection

The example of a scientist studying Darwin's ideas is that of archaeologists uncover, catalog, and compare fossils of marine life.

Darwin's ideas stated that the traits that favor the survival of a species are passed on by natural selection. Natural selection puts environmental pressures on the species, such as predators, which removes the less suited genes from the gene pool. An archaeologist will study this as he or she will observe the changes that will have taken place in the species over time.