The Human Brain The Human Brain Through the practice of molecular biology it is thought that the hominidae family first appeared some 5 jillion years ago. Based on this clipping frame it is believed that an African Hominoid lineage was present shortly forward that time, approximately 10 myp, which contained the common ancestor to both the chimpanzee and human. The split into proto-chimpanzee and proto-human occurred during the last million years of the Miocene epoch. (Changeux and Chavaillon pg. 61). The fossils, especially those of the skull, from this time frame are limited. This leads to difficulty in proving differences in ace formation.
Fossils of the hominoid cranium are not available until 2 million years after the proto-human lineage begins. The lack of cranial fossils for 2 million years is a problem. We do not acknowledge what took place during this time. The first available cranial fossils are those of A. afarensis. The lowly endo cranial capacity was 413.5 cm3, which ...If you want to get a just essay, order it on our website:
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