Question

Imagine you are analyzing the Lucy A. afarensis skeleton. You also have skeletons from a chimpanzee and a modern human. Which parts of Lucy are more similar to chimpanzee? Which parts are more similar to modern humans? Which parts of the Lucy skeleton give you the most information to note the similarities and the differences? 

Answer 1

• "Lucy" is the nickname of one of the most well-known human ancestor fossils.Lucy was allocated to the species, Australopithecus afarensis, meaning “African southern ape from the Afar region.”
• Modern humans and Lucy share a similar carrying area, called the bipedal carrying angle. So in studying and comparing with modern humans it's important to pay attention to the femora angles connecting hip joints to converge at the knee. Its formed in between the long access of the femur and the tibia.
• In comparing chimpanzees with Lucy the arms are something to look at. Not quite as long in proportion to the chimps but definitely longer in proportion to the average human. The teeth of Lucy seem somewhere in between modern human dental structure and that of a chimpanzee. I believe that teeth tell us a lot of what we know on creatures makeup and lifestyle. To me this evidence shows that Lucy was somewhere in between, but on her way to becoming human.