Hank guides us through the process of natural selection, the key mechanism of evolution.Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourseFollow CrashCourse on Twitter: http://www.twitter.com/theCrashCourseTable of Contents:1) Natural Selection 1:272) Adaptation 2:563) Fitness 3:364) Four Principals 3:54a. Variations 4:01b. Heritability 4:17c. "The Struggle for Existence" 4:25d. Survival and Reproductive Rates 5:005) Biolography 5:596) Modes of Selection 7:40a. Directional Selection 8:17b. Stabilizing Selection 8:56c. Disruptive Selection 9:277) Sexual Selection 10:228) Artificial Selection 11:24References for this episode can be found in the Google document here: http://dft.ba/-2AnkThis video uses the following sounds from Freesound.org:"20071104.forest.04.binaural.mp3" by dobroide"ForestBirds.wav" by HerbertBolandcrashcourse, science, biology, natural selection, genetics, peppered moth, inherited traits, population genetics, charles darwin, darwin, on the origin of species, evolution, adaptation, galapagos finches, fitness, variation, phenotype, heritable, malthus, survival rate, reproductive rate, crossbreeding, inbreeding, genotype, directional selection, stabilizing selection, disruptive selection, selective pressures, sexual selection, artificial selection, selective breeding
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