1. What is the driving force of evolution?
(Natural Selection)

2. How does this relate to the Galapagos Islands?

3. Galapagos Islands 13 species of finches
Resemble one finch from South America
One species  13 species?
Adapted to various habitats
Different beaks = different food (read caption)
How did these different beaks arise?
Darwin’s theory of NATURAL SELECTION

4. Natural Selection
Natural Selection- The process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species. “Survival of the Fittest”.
Variation- Any difference between individuals of the same species.

5. Natural vs. Artificial Selection
Artificial Selection- When humans choose desired traits and breed organisms.
Artificial Selection Ex: Breeding dogs.
Natural Selection Ex: The Peppered Moths

6. Review Questions
1. What is an adaptation? How might an adaptation benefit a species?
2. What is variation?
3. What is natural selection? What factors might cause a change in a species over time?