Natural Selection – Crash Course Biology #14

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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 for this episode can be found in the Google document here: http://dft.ba/-2Ank
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This post was previously published on YouTube.