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Speciation: Of Ligers&Men - Crash Course Biology #15

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 Biology   |   Science
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Description

Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.

Crash Course Biology is now available on DVD! http://dft.ba/-8css

Like CrashCourse on Facebook: http://www.facebook.com/youtubecrashcourse
Follow CrashCourse on Twitter: http://www.twitter.com/thecrashcourse

References for this episode can be found in the Google document here: http://dft.ba/-2DnD

Table of Contents
1) Species 0:30
2) Hybrids 1:52
3) Reproductive Isolation 2:48
a) Post-Zygotic 3:31
b) Pre-Zygotic 3:51
4) Allopatric Speciation 4:23
5) Sympatric Speciation 6:03
6) Biolography 6:32
7) Dogs 8:37

This video contains the following sounds from Freesound.org:
"bird tweet.aif" by tigersound
"ForestBirds.wav" by HerbertBoland
"morning_in_the_forest_2007_04_15.wav" by reinsamba
"AMBIENT LOOP - Perfectly Clear - Wilderness Hillside - FILTERED.mp3" by Arctura
"oceanwavescrushing.wav" by Luftrum

biology, speciation, science, species, evolution, homo sapiens, organism, liger, napoleon dynamite, fertile, sterile, hybrid, hybridization, reproductive isolation, genetic isolation, pre-zygotic isolation, behavior, geographic, allopatric speciation, natural selection, galapagos, finch, artificial selection, corgi, greyhound, puppy, dog Support CrashCourse on Subbable: http://subbable.com/crashcourse

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