Explorations Chapter 12 Evolution of genus Homo Flashcards
African multi regionalism
The idea that modern Homo sapiens evolved as a complex web of small regional populations with sporadic gene flow among them.
Agriculture
the mass production of resources through farming and domestication
Aquaculture
The farming of fish using techniques such as trapping, channels, and artificial ponds
Assimilation hypothesis
Current theory of modern human origins stating that the species evolved first in Africa and interbred with archaic humans of Europe and Asia
Atlatl
A handheld spear thrower that increased the force of thrown projectiles
Band
A small group of people living together as foragers
Beringia
Ancient landmass that connected Siberia and Alaska. The ancestors of Indigenous Americans would have crossed this area to reach the Americas
Carrying capacity
the amount of organisms that an environment can reliably support
Coastal Route model
Theory that the first Paleoindians crossed to the Americas by following the southern coast of Beringia
Early Modern Homo sapiens, Early Anatomically Modern Human
Terms used to refer to transitional fossils between archaic and modern Homo sapiens that have a mosaic of traits. Humans like ourselves, who mostly lack archaic traits, are referred to as Late Modern Homo sapiens and simply Anatomically Modern Humans.
Egalitarian
Human organization without strict ranks. Foraging societies tend to be more egalitarian than those based on other subsistence strategies.
Foraging
Lifestyle consisting of frequent movement through the landscape and acquiring resources with minimal storage capacity.
Generalist-specialist niche
The ability to survive in a variety of environments by developing local expertise. Evolution toward this niche may have been what allowed modern Homo sapiensto expand past the geographical range of other human species.
Globalization
A recent increase in the interconnectedness and interdependence of people that is facilitated with long-distance networks
Globular
Having a rounded appearance. Increased globularity of the braincase is a trait of modern Homo sapiens.
Gracile
Having a smooth and slender quality; the opposite of robust