ANT101H5 Lecture Notes - Lecture 15: Mitochondrial Eve, Brain Size, Land Bridge

• School: UTM
• Department: Anthropology
• Course: ANT101H5
• Professor: Sherry Fukuzawa

Document Summary

Chin all pre-modern human specimens do not have a chin, synapomorphy due to attachment of muscles for speech. Avg cranial capacity is 1300cc (for all modern humans) Earliest modern human find: omo, ethiopia 195 kya (africa!!!) Origin of modern h. sapiens hypotheses: single origin /complete replacement / out of africa (eve) hypothesis (stringer & andrews, 1988) Origin of modern humans in africa, with later replacement of all of other homo species (including. Population originated in africa, moved into asia (probably over levantine corridor) and then. Australia, replacing all archaic species as they went along replaced by outcompeting. According to this theory, there is no inbreeding between new and archaic species. Genetic studies: mtdna (haviland et al. , 2009) Africa has greatest level of mtdna diversity, probably home of 1st modern. Homo sapiens african eve 200 kya (passed on maternally, can only change via mutation because its not involved in meiosis) Earliest evidence of first modern human and eve estimates coincide nicely.