evolution_intro

evolution_intro - Evolution Ch 15,16, 17 Evolution Nothing...

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Evolution Ch 15,16, 17
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Evolution “Nothing in biology makes sense except in the light of evolution” Theodosius Dobzhansky
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Evolution Evolvere “to unfold or unroll” Central organizing concept of how the world and organism have come to function Builds on accumulating knowledge Need organisms history to fully understand it Descent with modification Often with diversification
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Evolution Genetic change in a population or species over generations; heritable changes that have produced Earth’s diversity of organisms Understand living organisms/ life Unifying scientific concept
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Darwin Father of evolution- Charles Darwin “Origins of Species”
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Before there was Darwin…
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History of Evolutionary thought
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Plato 427-347 BC Essentialism Essence- perfect form Earthly plane & essential plane Static world Variation Imperfect earthly representation Only essence matters
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Aristotle 384- 322 B.C Essentialism with taxonomical organization Scala Naturae Aka Scale of nature Aka ladder of nature God created all species No gradation among species No new species, no extinctions Spontaneous generation
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Scala Naturae
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…….Add Judeo-christianity
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Historical Time frame Plato/ Aristotle Essentialism- fixed species Victorian era- 1700-1800 “Pre- science” Natural Theology- Life’s diversity attributed to god’s splendor God created all diversity Earth very young Role of science to catalogue god’s creatures “god’s splendor in the intricacies of life” Taxonomy
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Victorian Era Victorian era Conservative, chaste Lack in education Lack in communication Christianity dominated Earth created in 7 days Earth is not old 6000 yrs Earth is static
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Newton 1643- 1727 Explained physical phenomena Introduced Mechanistic ideology Explain the world outside of god Introduced the power of reason Beginnings of an atmosphere that encouraged the questioning of old beliefs Spurred the “Age of Enlightenment” Faith in progress & the power of reason
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Carolus Linnaeus, 1707-1778
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Cuvier 1769-1832 Paleontology, geology, comparative anatomy History of life documented via fossils Older fossils deeper Unique species at each depth Extinction via catastrophism No evolution So complex could not be altered
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James Hutton 1726-1797 Father of Geology Earth is OLD “no vestige of a beginning, no prospect of an end” Older than 6000 yrs Processes of earths changes can be explained by present time processes Ex water Gradualism Profound change is the cumulative product of slow continuous processes
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Charles Lyell Geologist Principles of Geology Earth is very old Uniformitarianism Geological processes have not changed over time- same rate today as in past Responsible for timeline of earth
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evolution_intro - Evolution Ch 15,16, 17 Evolution Nothing...

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