1. According to DNA evidence, how many years have humans and chimps been evolving separately?
2. Describe “Lucy” (Australopithecus afarensis) and why she is significant?
3. In the 1970s, what was found in the layers of cemented volcanic ash in eastern Africa?
4. Why are human feet “strange” according to Tim White?
5. What was significant about “Ardi” (Ardipithecus ramidus)?
6. Which is the oldest feature to evolve in humans: bipedalism, brain size, or tool making?
