BIOL1003 Lecture Notes - Lecture 5: Natural History Museum, London, Beagle, Crustacean
Darwin’s career
(From notebook- first phylogenic)
• 1820’s- Doctor training —> natural historian
• 1830’s-Voyage of the beagle
• 1837- begins to accumulate notes on evolution
◦ Darwin presents Galapagos mockingbirds, finches to the Zoological Society of
London
◦ Thought they were varieties of mockingbirds
◦ John Gould (profession) says they are distinct species
◦ Darwin has identified the finches as allied to woodpeckers, warblers, grosbeaks,
and finches- though they were distinct groups
◦ Gould said they were all finches
• 1838 -read Malthus’s essay on population, got him onto natural selection
• 1839- Voyage of the Beagle
• Published many books- geology, botany
• 1845- Geography of Galapagos islands led him to believe they were recent
◦ Did not publish at this point because he wanted to further his expertise before
presenting a revolutionary scientific idea
◦ Friends said become a serious naturalist
• 1846- Darwin’s barnacle work (9 years)
◦ crustacean that glues its head to a rock and filter feeds with its legs
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Document Summary
Darwin"s career (from notebook- first phylogenic: 1820"s- doctor training > natural historian, 1830"s-voyage of the beagle, 1837- begins to accumulate notes on evolution. Darwin presents galapagos mockingbirds, finches to the zoological society of. John gould (profession) says they are distinct species. Darwin has identified the finches as allied to woodpeckers, warblers, grosbeaks, and finches- though they were distinct groups. Did not publish at this point because he wanted to further his expertise before presenting a revolutionary scientific idea. Richard owen- not an evolutionist: coined the term dinosaur", established british natural history museum, interpreted the fossils of the beagle expedition, defined homology" function the same organ in different animals under every variety of form and. Key idea: continuity of information through genetic descent with modification. Other examples of homology (evidence of evolution: embryology general characters appear in embryos development: general > special embryo of a higher form never resembles any other form- just its own.
