In this exercise, you′ll explore an essential aspect of being human–walking on two legs. Review the information from Chapter 9 concerning bipedality. View the following short video: When We First Walked (Links to an external site.). View this interactive display on the origins of bipedalism from NOVA Science (Links to an external site.). **NOTE–The interactive format is no longer working because it relies on Flash. Click on the Printable Version instead. Once you review the above material, answer the four questions below. You can type your answers directly into the text box or upload them as a file. You do not need to rewrite the questions, but please number your answers. the links: https://www.pbs.org/wgbh/nova/evolution/origins-bipedalism.html https://ca.pbslearningmedia.org/resource/first-walked-eons/first-walked-eons/ Questions: 1. What specific parts of the skeleton are most important in assessing whether a fossil form was bipedal? 2. Based on the evidence from fossils and paleoenvironmental reconstruction, how did Ardi (Ardipithecus ramidus) use bipedalism? How did it differ from how we walk bipedally? 3. According to the video, what is the savanna hypothesis and why is it becoming discredited? 4. List some of the advantages and disadvantages of bipedalism.
