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

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

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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


About The Objective Review - Journalist Joseph Kirk
"so it is to the printing press--to the recorder of man's deeds, the keeper of his conscience, the courier of his news--that we look for strength and assistance, confident that with your help man will be what he was born to be: free and independent." ~John F. Kennedy Contributing to the people with passion and diligence through vigorous and tedious research to get the facts out for review. Political Correspondent for: General News Agency United Press Association News Examiner Demonstrating much prowess for informing the inquiring mind throughout the Republic of the United States of America. an accredited member of the General News Agency, United States Press Agency, United Press Association, US Press Association, The Examiner and The Objective Review. You can be confident that you have been objectively and fully informed. Correspondent Joseph Kirk: theobjectivereview@gmail.com

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