| 1 | Darwin: Nature selects, the fittest survive. | |
| 2 | All Darwin perceived was that selection must work in nature, too. | |
| 3 | Through natural selection over thousands of years, these characteristics continue to the present day. | |
| 4 | "last it thing it select, survival of the fittest "is nature the basic laws of biological evolutions. | |
| 5 | "Survival of the fittest, " describes the runners finishing the marathon races. |