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Darwin – the man

Darwin – the man. Born 1809, England Studied Doctor Priest Marine organisms Beetle collecting Invited on HMS Beagle 5 year mission Dec. 1831 – Oct. 1836 Mapping coastlines Serve as naturalist. Collected samples Notebooks of observations. Patterns Observed. Species vary globally

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Darwin – the man

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  1. Darwin – the man • Born 1809, England • Studied • Doctor • Priest • Marine organisms • Beetle collecting • Invited on HMS Beagle • 5 year mission • Dec. 1831 – Oct. 1836 • Mapping coastlines • Serve as naturalist

  2. Collected samples • Notebooks of observations

  3. Patterns Observed • Species vary globally • Rheas, ostriches, emus • Rabbits • Kangaroos • Conclusion • Species vary locally • Rheas • Galapagos • Tortoises • Mockingbirds • Finches • Conclusion

  4. Species vary over time • Fossil collection • Glyptodont • Conclusion • Overall conclusion • Species not fixed • Change over time • Natural process

  5. Ideas that influenced Darwin • Geology • Hutton • Process of mountain formation • Long periods of time • Conclusion • Lyell • Uniformitarianism • Conclusion • Effect on Darwin • Significance of an earthquake • Marine fossils • Concluded

  6. Daily Review #1 • What were Darwin’s 3 major conclusions about species from his observations? • What did Hutton contribute to our understanding of geology? Lyell?

  7. Larmarck • Urge to be more complex and perfect • Choose to change • Use body in new ways • Pass on acquired traits • Comparison what we now know: • No inborn drive to become perfect • Changes aren’t always for the better • Acquired traits not inherited

  8. Malthus • English economist • Population growth patterns • Can’t grow unchecked • Lead to a limiting phenomenon • Effect on Darwin • Not all offspring survive • Which ones survive?

  9. Artificial selection • Plant and animal breeders • Select those that reproduce • Desirable traits show up in offspring • Humans control reproduction • Darwin • Recognized natural variation • Appearance of traits can be manipulated

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