We humans have begun to play god- breeding animals to create all-new hybrids. If the Jurassic Park movies have taught us anything it’s that such antics may go horribly wrong but, for... Read more »
Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter:... Read more »