Natural Selection - Crash Course Biology #14

2012-04-30

[public] 2.74M views, 27.7K likes, 834 dislikes audio only

Hank guides us through the process of natural selection, the key mechanism of evolution.

Table of Contents:

1) Natural Selection 1:27

2) Adaptation 2:56

3) Fitness 3:36

4) Four Principals 3:54

a. Variations 4:01

b. Heritability 4:17

c. "The Struggle for Existence" 4:25

d. Survival and Reproductive Rates 5:00

5) Biolography 5:59

6) Modes of Selection 7:40

a. Directional Selection 8:17

b. Stabilizing Selection 8:56

c. Disruptive Selection 9:27

7) Sexual Selection 10:22

8) Artificial Selection 11:24

References:

http://curiosity.discovery.com/topic/ecology-and-evolution/10-examples-natural-selection.htm

http://www.globalchange.umich.edu/globalchange1/current/lectures/selection/selection.html

http://blogs.scientificamerican.com/observations/2010/05/03/charles-darwins-family-tree-tangled-with-inbreeding-early-death/

http://www.aibs.org/bioscience-press-releases/resources/Berra.pdf

http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20101/bio%20101%20lectures/Natural%20Selection/natural.htm

http://www.irac-online.org/about/resistance/

http://www.pbs.org/wgbh/evolution/library/01/6/l_016_09.html

http://evolution.berkeley.edu/evolibrary/article/evo_30

This video uses the following sounds from Freesound.org:

"20071104.forest.04.binaural.mp3" by dobroide

"ForestBirds.wav" by HerbertBoland

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