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Charles Lyell & Jean-Baptiste Lamarck

Charles Lyell & Jean-Baptiste Lamarck. By: Will Fraleigh. Charles Lyell. Charles Lyell was born in 1797, and died in 1875 Charles Lyell was a lawyer and Geologist, known for his sizable contributions to the field.

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Charles Lyell & Jean-Baptiste Lamarck

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  1. Charles Lyell & Jean-Baptiste Lamarck By: Will Fraleigh

  2. Charles Lyell • Charles Lyell was born in 1797, and died in 1875 • Charles Lyell was a lawyer and Geologist, known for his sizable contributions to the field. • He formulated a theory called Uniformitarianism with the help of James Hutton.

  3. James Hutton • James Hutton was a Scottish geologist, physician and naturalist born in 1726 • He is known popularly as “The father of modern geology” • He was responsible for sizable contributions to the field of geology such as: Uniformitarianism & Plutonism

  4. Uniformitarianism • This was a theory created by Charles Lyell and James Hutton, a Geologist like Lyell • Geological changes are slow continuous rather than catastrophic, the small changes would start to build over time into much greater changes in the land. • Contrary to the current (at that time) belief that the earth was shaped quickly by violent events.

  5. Key Points of Uniformitarianism • This was one of the first theories of geological change that suggested earth was more than 6000 years old • When James Hutton first came up with the theory it wasn’t recognized for some time until Charles Lyell made revisions and publicized it more. • To this day many of the key points of this theory still hold true, especially the aspects of geological change.

  6. Charles Darwin & Charles Lyell • Charles Darwin was also influenced greatly by Charles Lyell and his theory of uniformitarianism. • He thought that even though the theory was expressed about geological features that it could also hold true to the evolution of populations. • This turned out to have some truth in it. Because just as land living organisms change very slowly in small steps.

  7. Uniformitariansim Video • http://www.youtube.com/watch?v=H9iuiBPc0tE • Note: He sounds like Crocodile Dundee…

  8. Jean-Baptiste Lamarck • Jean-Baptiste Lamarck was a Biologist born in 1744 • Jean-Baptiste Lamarck outlined his ideas about changes in species over time by comparing there current forms with their fossil forms

  9. Inheritance of acquired characteristics • Lamarck hypothesized that the organisms would become progressively better adapted to their environments. Ex: The giraffe getting a progressively long neck in order to feed off trees. • Inheritance of acquired characteristics: the idea that characteristics acquired doing an organisms lifetime can be passed on to its offspring

  10. Acceptance of the Theory • Many people at the time didn’t accept Lamarck’s theory because they believed that species stayed the same and never changed. • This was because at the time there was very little knowledge of cell biology and how adaptive they really were. • This belief would be more extensively disproved by Charles Darwin.

  11. Charles Darwin and Lamarck • Charles Darwin, who created the generally accepted theory of evolution by natural selection found there to be a lot of truth in what Lamarck had to say. • He eventually used a slightly altered version of Lamarck’s theory as he created the theory of evolution. • There is no doubt that Lamarck greatly influenced Charles Darwin and contributed a great deal towards what we now know as the theory of evolution.

  12. Lamarck Video • http://www.youtube.com/watch?v=4HBdxDBqfHc&feature=related

  13. Bibliography • "AboutDarwin.com - Who was Darwin."AboutDarwin.com - Home Page. N.p., n.d. Web. 21 Nov. 2012. <http://www.aboutdarwin.com/darwin/WhoWas.html>. • Mathoz, Edmond A.. "James Hutton: The founder of modern Geology." amnh.org. N.p., n.d. Web. 21 Nov. 2012. <www.amnh.org/education/resources/rfl/web/essaybooks/earth/p_hutton.html>. • Neymen, Greg. "Old Earth Creation Science, Catastrophism or Uniformitarianism?." Creation Science - Old Earth Ministries. N.p., n.d. Web. 21 Nov. 2012. <http://www.oldearth.org/catastrophism.htm>. • "Nonsense in schoolbooks: 'The Imaginary Lamarck'." The Textbook League. N.p., n.d. Web. 21 Nov. 2012. <http://www.textbookleague.org/54marck.htm>. • Smith, William . "Uniformitarianism: Charles Lyell." Understanding Evolution. N.p., n.d. Web. 21 Nov. 2012. <http://evolution.berkeley.edu/evolibrary/a

  14. Video citations • Seconds, Science in . "Science in Seconds - Lamarckian Evolution - YouTube." YouTube. N.p., n.d. Web. 23 Nov. 2012. <http://www.youtube.com/watch?v=4HBdxDBqfHc&feature=related>. • Schist, ALoadOf. "An introduction to uniformitarianism - YouTube." YouTube. N.p., n.d. Web. 23 Nov. 2012. <http://www.youtube.com/watch?v=H9iuiBPc0tE>.

  15. Thanks For Watching • Please enjoy the rest of your day.

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