Origins of Modern Humans:
Multiregional or Out of Africa?
There are two theories about the origin of modern humans: 1) they arose in one place
Africa and 2) pre-modern humans migrated from Africa to become modern humans
Human origins: Out of Africa
+ Author Affiliations
Division of Anthropology, American Museum of Natural History, New York NY 10024
Edited by Richard G. Klein, Stanford University, Stanford, CA, and approved July 16, 2009 (received for
Humans were once monkeys
Living organisms are believed to be once developed from other living organism from
an earlier stage of life
Change over time
Development of animals and plants
Where do humans fit in the world of living
What are the characteristics of primates?
How are humans like the other primates?
How are we unique?
A classification system based on
similarities and differences
What is a fossil?
A fossil is an impression, cast,
original material or track of
any animal or plant that is
preserved in rock after the
original organic material is
transformed or removed.
A fossil may be:
an original skeleton
HOW DO WE
age of fossils:
the order in which fossils
occurred- does not give exact
Shows what organisms liv
Out of Africa or multiregional hypothesis?
Anthropologists agree that human origins came from Africa. The oldest
hominid fossils are found there. Homo erectus spread throughout the world
travelling through Europe and into Asia.
The Out of Africa model pro
The Tree of Life
All living things share a common
We can draw a Tree of Life to
show how every species is related