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.

Crash Course Biology is now available on DVD! 在家DIY的最佳美甲://dft.ba/-8css

Like CrashCourse on Facebook: 在家DIY的最佳美甲://www.facebook.com/youtubecrashcourse
Follow CrashCourse on Twitter: 在家DIY的最佳美甲://www.twitter.com/thecrashcourse

References for this episode can be found in the Google document here: 在家DIY的最佳美甲://dft.ba/-2DnD

Table of Contents
1) Species 0:30
2) Hybrids 1:52
3) Reproductive Isolation 2:48
一种) 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

生物学, speciation, 使用人类有史以来最大的机器, 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 Patreon: ❤️情人节美甲💅教程#20nails://今天我们将探讨教育作为社会的历史