Calvin's "Life during the Ice Age" project

Calvin was so inspired by a book we read for school called "Life in the Great Ice Age" that he took it upon himself to craft a live scene of what he learned.  There is a cave with fire to keep out the animals, a river, beaver, a fallen tree, a bearskin stretched out, meat drying over a log, and more.  I didn't tell him to do this, he just did it himself!