Wednesday, April 7, 2010
Lucy in the Sky with Diamonds
Creationists vary on how conservative they adhere to the seven (technically six) days of creation as described in the bible. Some creationists believe in microevolution but not macroevolution while Coyne states that "liberal creationists admit that some species could have evolved from others, (but) all creationists draw the line at humans" (193). What seems to be the major barrier in the debate of evolution versus intelligent design is how Homo sapiens came to be so incredibly different from other animals, both physically and mentally. It was a scientific milestone when Johanson discovered "Lucy", a Australopithecus afarensis, in 1974 (200). This nearly complete fossil lived 3.2 million years ago and helped close the gap between modern humans and the missing link between humans and chimpanzees. In which ways did the anatomy of Lucy help close this gap? Explain how Lucy specifically showed how human anatomy is physically traceable to other species. In what other humanoid fossil discoveries helped close the mental gap?