In this weeks video baby Indigo plays with Gorilla Liesel the oldest gorilla of the Budapest zoo. Liesel was born on the April 15th 1977 in Germany Frankfurt and moved to the... Read more »
Hank takes us through the bowels of the human digestive system and explains why it’s all about surface area. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like Crash Course? http://www.facebook.com/youtubecrashcourse... Read more »
