Photography by Valji Varia www.natural-variation.com Amazing footage of leopard catching, playing with and then killing impala in the Sabi Sand Game Reserve in South Africa The Sabi Sand Private Game Reserve shares... 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 »
