Draw a simplified phylogenetic tree of Hominins (not all species have to be included), at the root of your tree write the shared derived characteristics that distinguish Hominins from other great ape (Hominidae) species. Next, indicate on your tree when the following traits evolved: large brains, bipedalism, the Great Leap Forward, fire, first stone tools, human-like hand proportions, adducted big toe, and less sexual dimorphism.