One dramatic case of an h ergaster female that died

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- one dramatic case of an H. ergaster female that died from hypervitaminosis A - diagnosed from abnormal secondary growth of bone tissue that it causes - probably from eating an uncooked carnivore liver - does that mean H. ergaster hunted carnivores? - or that they had carnivore carcasses so rarely that they did not learn to avoid raw livers? - Olorgesaile again: H. ergaster butchered an elephant there - lack of carnivore toothmarks on the elephant bones suggests that they hunted it - Acheulean tools work well for butchery - maybe implying that they had to do a lot of it, because they hunted - H. ergaster back teeth are small - implies reduced selection for being able to chew tough, hard plant foods - yet the climate was increasingly seasonal, so there would be more times when only poor, tough plant foods were available - was H. ergaster substituting more meat, instead? - H. ergaster lived in a very cold climate at Dmanisi, Georgia - what could they have eaten in the snowy winter when few plant foods were available? - maybe hunted meat?
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Intro to Biological Anthro F 2011 / Owen: Homo but not quite us p. 5 - Did H. ergaster control fire? - At Koobi Fora, Acheulean tools were found with a patch of burned soil - experiments suggest that the soil was burned at temperatures higher than those caused by wildfires, burning tree trunks, etc. - the burned soil was in a bowl-shaped form, typical of artificial camp fires - so maybe they made fires for warmth, light, keeping away animals, or even cooking? - many animal bones from the Acheulean levels at Swartkrans (a cave site in South Africa) were burned at high temperatures - experiments suggest these temperatures were higher than usually occur in natural fires - more typical of concentrated campfires - Again, H. ergaster lived in a very cold climate at Dmanisi - could it have survived the winters without fire? - seems likely that H. ergaster did control fire, but the evidence is still not conclusive - Another early member of our genus: Homo erectus - 1.6 mya to 0.03 mya (that is just 30,000 years ago!) - similar to H. ergaster , but not identical - probably an early branch from the same lineage - I’ll spare you the many interesting similarities and differences - only found in Asia - appeared in Asia very quickly after H. ergaster appeared in Europe - presumably part of the same process of expansion out of Africa - H. erectus probably descended from early H. ergaster that left Africa - H. erectus survived as a species until very recently - went extinct much more recently than H. ergaster did - but changed very little over all that time - unlike H. ergaster , cranial capacity did not gradually increase - nor did they change the kinds of tools they made - (at least the stone ones, which are all we can see) - so H. erectus presumably did not evolve the greater intelligence and flexible learned behavior of later species of Homo - this does not mean that H. erectus was inferior - on the contrary, it suggests that H. erectus was a successful, well-adapted creature whose average individual was reproducing just fine - Did Homo erectus make Acheulean tools?
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