Homo habilus: “handy man”, Around 2 mya (1.6-2.3), Primary finds at Olduvai Gorge and Lake Turkana Brain size was about 750cc
Oldowan Tools Cutting: Buttering meat Bashing: Breaking open long bones for marrow First tools or first stone tools? Implies greater cognitive ability
Behaviors? • Hunting? • Scavenging • Homicide/cannibalism • Built simple huts: like bushmen today? • Larger home ranges • Probably nuclear family units: one male, one (maybe more) females • Food sharing with kin • Seminomadic • Central place foraging?
Homo erectus African Asian
Brain Bigger:about 1000cc Teeth very human like
Skeleton Look more human like(more robust) "The Turkana Boy“ (early erectus)
Acheulean tools Choppers: simpler with cutting edge (Africa and Asia) Hand axes: symmetric biface (not in Asia, bamboo curtain)
Behaviors • Big Game hunter (elephants and such) • Big packages of meat imply wider sharing networks (kinship and reciprocity) • First Fire? • Choppers used to working skins (clothes making) • First to leave Africa (Europe and Asia) • New Habitats • Language? • Symmetry in tools implies special cognitive ability • Cultural?