Chapter 14-Principles of Evolution

Chapter 14-Principles of Evolution - Simpsons Evolution...

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Simpsons Evolution
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What is Evolution? A theory that states: modern organisms have descended and modified from preexisting organisms any change in the proportions of different genotypes or characteristics ( genes ) in a population from one generation to the next (change over time).
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What is a theory? A theory is an explanation for natural events based on a large number of observations by many different people that cannot be disproved based on the current technology. Simply speaking: Theories are true!
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Important Scientists Buffon (mid 1700s)- Created, then evolved Hutton (early 1700s)- Gradualism Lamarck (1750s)- Evolution in which acquired traits are passed Cuvier (late 1700s)- Catastrophism Lyell (early 1800s)- Uniformitarianism Smith (early1800s)- Same fossils in same rock layers Darwin and Wallace (mid to late 1800s)- Evolution by Natural Selection
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Georges Buffon +
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James Hutton
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Jean Baptiste Lamarck According to Lamarck, these muscles would be automatically passed on to his kids.
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Cuvier
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Lyell
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Smith
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Charles Darwin Born 1809 (same day as Abe Lincoln)
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In 1831 - sailed around the world as a naturalist on the HMS Beagle . Shaped his ideas about evolution.
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Galápagos Islands
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Darwin’s Travels Darwin spent time on shore, observing and collecting thousands of specimens of native plants and animals in South America. Found that all of these organisms were well adapted to life in their particular climate , and were very different from similar organisms in Europe.
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Darwin’s Fossils Darwin found fossils of animals that were similar to those that were currently living.
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He also found animals there live nowhere else in the world, but resemble animals from other parts of the world. Green Iguana Marine Iguana
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Darwin’s Finches Small birds living on the Galapagos. The different finches living on the various
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Chapter 14-Principles of Evolution - Simpsons Evolution...

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