1. Chapter 17-1: A Voyage of Discovery
Essential Questions:
What did Charles Darwin’s contribute to science?
What 3 patterns of biodiversity did Darwin observe?
What contemporary ideas shaped Darwin’s thinking?

2. Voyage of the HMS Beagle – 1831 – 1836
Evolution
Mechanism of evolution

3. Observations from the voyage
Species vary globally
Plants/animals well-suited to environments
Similar environments on different continents

4. Species vary locally
Galapagos islands
Tortoises
Finches

5. Species vary over time

6. Putting the puzzle together
How could living things change over time?

7. Chapter 17-2: Ideas that influenced Darwin
An ancient, changing Earth
Hutton
Lyell

8. Lamarck’s Evolutionary Hypothesis
Inborn urge toward perfection
Use and disuse
Inheritance of acquired traits
Evaluating Lamarck’s theory

9. Population growth
Thomas Malthus – 1798
Darwin:
struggle for existence

10. Artificial selection
Variation in species