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Charles Darwin

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Charles Darwin Man, with all his noble qualities, still bears the incredible stamp of his lowly origin. Chronology The Beagle Chronology 1831 36 Takes the ... – PowerPoint PPT presentation

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Title: Charles Darwin


1
Charles Darwin
Man, with all his noble qualities, still bears
the incredible stamp of his lowly origin.
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Chronology
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The Beagle
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Chronology
  • 1831 36
  • Takes the job of unpaid naturalist aboard HMS
    Beagle
  • 1859
  • Publishes The Origin of Species
  • 1871
  • Publishes The Descent of Man
  • 1881
  • Dies and is buried in Westminster Abby

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The Spark
  • Ignited with the 1831 HMS Beagle expedition
  • Was to chart coastlines of South America and
    other areas of the Pacific
  • At that time was supposedly studying religion but
    abandoned university studies

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The Galapagos
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The Galapagos
  • Made many geological and biological observations,
    but time spent around the Galapagos had most
    significant impact
  • Ten islands relatively isolated, even from each
    other
  • Acted as a series of distinct observatories
    through which Darwin could draw comparisons
  • Noted islands shared many species of flora and
    fauna in common, but each land mass often
    displayed distinct variations within the same
    group of organisms.

22
Finch
  • Famously noted fourteen different types of finch,
    notably with different beaks
  • In each instance particular beak seemed to best
    suite the capture of the birds prevalent food
    source, whether it be seeds, insects or fish
  • Surmised that the birds had descended from a
    single parent species, rather than each springing
    up independently
  • Thus acknowledge idea of evolution

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Finches
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Finches
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Evolution
  • In animal world, only those best adapted to food
    collection in their environments would survive
  • Those who could not compete would die out
  • As environments changed and animals moved about,
    success criteria would change, gradually
    resulting in variations within species
  • Ultimately new species would be created

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Evolution Puzzle
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Challenging Notion of God
  • Challenged commonly held view of man as lord of
    the earth, specifically created and placed upon
    planet in Gods image, as described in the Bible
  • Darwin anticipated resistance to his ideas
  • Consequently kept his theories in the dark for
    twenty years while he gathered additional
    evidence to back up his case

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Darwin and Wallace
  • Jointly published with Alfred Russell Wallace in
    1858
  • Joint public declaration of their hypotheses by
    submission of a paper to the Linnean Society
  • Darwin followed up with more detailed account in
    1859 On The Origin of Species by Mans of
    Natural Selection

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Legacy
  • Darwins ideas took long time to come accepted
  • Even today not embraced by everyone
  • Encountered particularly fierce opposition from
    the Church

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