1. Darwin’s Origin of Species

2. Theory of Evolution by Natural
Selection
• Natural Selection: nature favours the
reproductive success of certain
individuals over others
• Evolution is the result of natural
selection occurring over many
generations

4. Spencer’s Survival of the Fittest
• Used to describe process of natural selection
• Misleading
• Fitness relates to reproductive success, not physical
fitness
Adaptation
• Characteristic or feature of a species that makes it
suited for survival or reproductive success in its
environment

5. Evolution of large-billed finches

6. Evolution of large-billed finches

7. Evolution of large-billed finches

8. Evolution of large-billed finches

9. Potential for Falsification