10-03-11 - Language origins Tools, meat eating, brain...

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Language origins Tools, meat eating, brain expansion Tool use did not necessitate language Homo Ergaster Georgia—former soviet satellite Jawbone found in 1991 Finds in 1999 proved the validity of the jawbone; providing context. An adult male and adolescent female skull. Homo was as varies as we are today; lots of variation between sexes and amidst species. Resolved an assumption that different sized implied different species. Bigger brains caused them to move north out of Africa (1.5mya); as ice moved north, grass grows and moves farther north. Following the predators, HE’s moved north to follow the predators to scavenge the carcasses they subdued. Here we develop evidence of relative punctuated equilibrium. Homo Erectus (and all variations) Fossils 1.9mya-300kya? Africa, Java, China, Western Europe, Georgia, India Evolved in Africa from early homo Characteristics Brain: 600-1225cc (progressively gets larger) Brain structure (nearly human)
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10-03-11 - Language origins Tools, meat eating, brain...

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