ANTHROP 2200H Lecture Notes - Lecture 2: Adaptive Radiation, Common Descent, Gradualism
19 Aug 2016
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Evolution: changes in genetic structure if population over time, formation of new species, repeatedly tested and not falsified (theory, lots of evidence. History: charles darwin: on the origin of species , evolution by natural selection. Iii: belief in statis, fixity of species, great chain of being, earth is full (no new speciation or extinction) Why change: age of exploration, discovery of new world, earth nor flat, biological diversity, globalization (b/c exploration in 16th century) Scientific revolution: 16th and 17th centuries, discovery of laws of physics, motion, and gravity. John lightfoot: created 9 am on october 23: copernicus (1514) and galileo (1642) Earth is in motion (not fixed: john ray (1627-1705) Species could not give rise to other species: jean-baptiste lemarck (1744-1829) 1st to propose system to explain evolutionary change. Organism changes in life and passes on to offspring. Special creation (by god to repopulate: charles lyell (1797-1875) Uniformitarianism: natural processes today same as in past.
