Anthropology 2100 Lecture Notes - Brain Size, Lewis Binford, Deep Sea

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From early homo to homo erectus and homo ergaster. Homo habilis and homo rudolfensis (2. 5 1. 6 mya) had much variation and they had a larger brain (500-800 cc) Their molars are reduced compared to austs but the incisors are still large and they were a habitual biped with a well developed foot and relatively long arms (ex: oh-62) Savannah environment created opportunities for scavenging and studies of cut marks on bones demonstrate scavenging using stone tools but there is still no good evidence for hunting. Scavenging may have been an activity conducted during the dry season. Fine grained stone fractures conchoidally and in a predictable manner. Possible sexual division of labour and long-term pair bonds and there was bipedalism, tool use and exploitation of new food resources may have lead to more complex social interactions but there is no evidence of ritual, ceremonialism, or symbolism.

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