cultural evolution
unilineal evolution
neoevolutionary model
multilineal evolution
Oldowan tools
Acheulean hand axe
ecological model
cultural ecology
optimal-foraging model
evolutionary-ecological model
technology
traditions
foraging
carrying capacity
bands
family band
patrilocal band
reciprocity
generalized reciprocity
balanced reciprocity
negative reciprocity
egalitarian
low energy budget
division of labor