2.  1831-1836

4.  Thomas Malthus

5.  Charles Lyell

6.  Farmers & Breeders – Artificial Selection

9.  Alfred Russel Wallace  “On the Origin of Species” - 1859

10.  Natural Selection:  More organisms are born than can be supported by the environment.  Organisms compete for resources.  Organisms have variation. Those with variations that are well suited to the environment are more likely to survive and reproduce.  Small differences in each generation can add up to big differences over time.

11.  Stabilizing Selection

12.  Directional Selection

13.  Disruptive Selection