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Charles darwin & Natural Selection


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Charles darwin & Natural Selection

  1. 1. Charles Darwin & natural selection<br />Ji Won, Natasha, Amna<br />
  2. 2. Key Terms<br /><ul><li> Mutation: creation of altered DNA
  3. 3. Gene flow: gene movement from one population to another
  4. 4. Genetic variation is affected by gene flow and it allows natural selection to occur
  5. 5. Charles Darwin
  6. 6. Natural selection
  7. 7. Survival of the fittest
  8. 8. Family Tree
  9. 9. “Descent with modification”</li></li></ul><li>Father of Evolutionary Biology<br />Charles Darwin<br />
  10. 10. Darwin as a Child<br />Naughty<br />Clumsy<br />Athletic<br />Gullible<br />Lazy <br />Slow learner<br />Shy<br />
  11. 11. Darwin’s Love for Natural Science<br />Was taught the classics, ancient history, and Greek at Revd. Samuel Butler's school and found it to be extremely boring<br />He developed his interest for natural science in activities outside of school<br />Hiking<br />Book Reading<br />Chemistry<br />
  12. 12. Darwin and Medicine<br />Darwin was admitted to Edinburgh University, in Scotland<br />Many members of his family including his dad were in the medical field<br />Assisted at his dad’s medical practice<br />Again he found most of his school studies a bore<br />Scared of blood<br />
  13. 13. A Further Interest in Science<br />Darwin participated in many things outside of school that sparked his interest in natural science<br />Stuffing Animals<br />Natural History Book<br />Natural History Museum<br />Plinian Society<br />Robert Grant<br />
  14. 14. At Cambridge University<br />To enter the popular profession of clergy, Darwin attended Cambridge University, at Christ's College. <br />Was again uninterested in his studies and spent time playing cards with friends, partying and shooting birds.<br />During this time various things added to his interest in natural science<br />Insect Collecting<br />Prof. Revd. John Henslow<br />Two Great Books<br />Professor Adam Sedgwick<br />
  15. 15. Religion vs. Science<br />Was a religious orthodox that received proper religious schooling<br />On the Beagle Voyage he witnessed slavery and the wretched state the natives of Tierra del Fuego lived in<br />Darwin began to research the origin of species and saw that the species adapted to their environment of time<br />While coming up with the laws of natural selection, Darwin became less religious<br />In contrast with the churches views believed that God initiated the process but did not create each species already fit for their environment<br />
  16. 16. The Theory of Natural Selection<br />Darwin’s several observations on nature: variation, heritance, competition, adaptation.<br />Natural Selection is a very simple concept!<br />Individuals with favored traits -> higher chance of reproduction -> more offspring with the traits <br />Thus, the certain traits will become popular in the population over generations. <br />Background<br />Inference<br />
  17. 17. The Theory of Natural Selection<br />Survival of the fittest<br />
  18. 18. Family Tree Evolution<br /><ul><li> Darwin’s another observation on bird species in Galápagos Islands in 1835
  19. 19. Common ancestor from the mainland of South America
  20. 20. “Descent with modification”</li></li></ul><li>Keys in Natural Selection<br />Natural Selection is…<br /><ul><li> The evolution of the population, not the evolution of the individuals
  21. 21. Dealing with heritable traits, not acquired characteristics
  22. 22. Based on the environment; being favored in one place does not mean it is also favored in a different place </li></li></ul><li>Cain, M. L., Campbell, N. A., Reece, J. B., Urry, L. A., & Wasserman, S. A. (2007). BIOLOGY: A P* Edition (8 Har/Cdr ed.). San Francisco: Pearson. <br />Genetic variation. (n.d.). Understanding Evolution. Retrieved May 26, 2010, from<br />Evolution 101: Gene Flow. (n.d.). Understanding Evolution. Retrieved May 26, 2010, from<br />Leff, D. (2000, February 12). Who was Darwin. Retrieved May 26, 2010, from<br />References<br />