Unformatted text preview: support the idea that there was another group of primates living in a separate area that can more obvious facial projections. Comparing species with regards to their foramen magnum ratio, the relationship between current species is quite clear. There is a linear relationship between modern day humans, chimpanzees, and gorillas. It is possible to draw a conclusion that human evolution progressed through anagenesis because of the linear relation through most of the human relatives. The shape of the chin and the canine to pre-molar ratio graphs are all over the place suggesting that the data is either very incorrect or the data shows cladogenesis since some of the species are semi-similar and some are not....
View Full Document
- Spring '08
- Human Evolution, Hominidae, foramen magnum, Australopithecus africanus, cranial size