What is Human: a final examination and personal view. Use the information you have come in contact with during this semester. Consider this idea: we are a composite of the past - contingent upon prior evolution. Post-orbital closure around the eye and three-dimensional eye-sight is a legacy that is at least 40 million years old. Our rotation in the thumb is a legacy of Miocene apes 18 million years ago. We share a foot structure that is common with Homo Habilis and Homo Erectus as is our knee structure. We share with Lucy a broad sacrum. The drawing on the next page illustrates points of legacy and contingency. Consider the fact that chimpanzees with a smaller brain size use tools and seem to have a complex social organization and rudimentary culture. Can we dismiss the possibility that there are different ways to being human? Tidbits to ponder: quotes and pictures