ANT100Y1 Lecture Notes - Lecture 5: Multiregional Origin Of Modern Humans, Microorganism, Vise
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From sites in tanzania, kenya, and ethiopia (2. 3-1. 6mya) Species designation: brain size increase and association with stone tools. May represent 2 or more different species (h. rudolfensis and h. habilis) First species in genus homo found outside africa. Brain and body size changes in lineage. Early african specimens may be different species, homo ergaster. Increase in cranial capacity and body size. Homo ergaster: east and south africa, 1. 8-1. 3mya, distinguished from h. erectus by its thinner skull bones and lack of an obvious supraorbital foramen, debate on h erectus or h ergaster as direct ancestor of modern humans. Compared to h. erectus: h. heidel(cid:271)erge(cid:374)sis had s(cid:373)aller teeth , a larger brain size, and a larger body size. Limb bones heavily marker by muscular attachments; thick walls of cortical bone and large joints. Neanderthals extremely muscular, highly active, and athletic by modern human standards. Neanderthals made stone tools, used fire and were hunters. Geneticists able to extract dna from 3 neanderthal specimens.
