Lecture 3

Lecture 3 - Chuck Charles (Chuck) Darwin, 1809 - 1882 The...

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1 Chuck Charles (Chuck) Darwin, 1809 - 1882 The Origin of Species - 1859 • Created a scientific revolution • Unlike some other scientific revolutions, this one did not require any new methods, observations, or calculations • Instead it came from the meticulous accumulation and synthesis facts from many different fields including Geology, Systematics, Natural History, Plant and Animal Breeding, and Economics Outline • Darwin – His intellectual time period – The voyage of the Beagle 1831-1836 – The Origin of Species 1859 • Descent with Modification • Natural Selection • Closing remarks Linnaeus (classification) Hutton (gradual geologic change) Lamarck (species can change) Malthus (population limits) Cuvier (fossils, extinction) Lyel (modern geology) Darwin (evolution, nutural selection) Mendel (inheritance) Wal ace (evolution, natural selection) 1750 American Revolution French Revolution U.S. Civil War 1800 1850 1900 1795 Hut on proposes his theory of gradualism. 1798 Malthus publishes “Essay on the Principle of Population.” 1809 Lamarck publishes his theory of evolution. 1830 Lyel publishes Principles of Geology. 1831–1836 Darwin travels around the world on HMS Beagle. Darwin begins his notebooks on the origin of species. 1837 Darwin writes his essay on the origin of species. 1844 Wal ace sends his theory to Darwin. 1858 The Origin of Species is published. 1859 Mendel publishes inheritance papers. 1865 Some of Darwin’s Influences Classification Linnaeus Geology Hutton, Lyell Paleontology Cuvier Economics Malthus Early Classification of Species • Aristotle Viewed species as fixed and unchanging Species arranged in a linear sequence of increasing approach towards god • The Old Testament Holds that species were individually designed by God and therefore perfect and that man and woman were the final creations representing the highest forms of life
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2 • Carolus Linnaeus (1707-1778) – Was a founder of taxonomy, classifying life’s diversity into a nested system of relationships or affinities (e.g. kingdom, phylum, class, order, family, genus, species) – Provides a hierachical view of the relationships among living species – Interpreted organisms’ fit to their environment (adaptations) as evidence that the Creator had designed each species for a specific purpose Phylum: Arthropoda Class : Insecta Order : Diptera Genus : Musca Species : domestica Hierarchical categories Musca domestica , house fly Carolus Linnaeus (1707-1778) Created exhaustive classification of animals and plants in Systema Naturae Used hierarchical categories (species grouped into genera, etc.) Groupings because of divine plan, not because of relatedness Role of scientist was to better understand God’s plan CLASSIFICATION Lamarck’s Theory of Evolution • Lamarck: Theory of Inheritane of Acquired Characteristics. • Hypothesized that species
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Lecture 3 - Chuck Charles (Chuck) Darwin, 1809 - 1882 The...

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