Speciation: Of Ligers & Men - CrashCourse Biology #15

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

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Comment by Lorryslorrys on May 7, 2012 at 6:54pm

I love crash course, sci show, vlogbrothers etc a set of shows which definitely increase awesome and decrease world suck. This is the first one that made me think of you atheist nexus people, with your massive hard on for evolution content. You should check this out if you haven't already. Also: Don't forget to be awesome.

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