Human Evolution
Modern species do not descend from modern species!!
It is not monkey to man. Rather, we share a common ancestor
We’re cousins
Cabbage
Our family tree
De-evolutionBranches can be branched even further
Evolution of the genus homo
A VERY gradual changeCan’t tell a difference between mother and daughter
Distinct difference between current population and great-great-great-great-great-great-great grandparents
Gradual Change
Asteroid
Call of Duty Advanced Warfare
The intermittent games resemble the games from the same time period
Follow current form backwards to find beginning
These are the punctuations. Fossils found that differ significantly
More fossils found that provide the transitional pictures
Don’t include those
SpeciationPopulations of the same species react to environment in different ways
SpeciationPopulations of the same species may separate
Live in different environments
Human SpeciationChimpanzees and Bonobos are our only living cousins.
Fossil record shows many more even more closely related
What differentiates us?
• Big brains• Thinner/flatter face• Greater wrist flexibility• Bipedal (walk upright)
First advances• Fossils show that bipedalism was
first– Australopithecines walked upright but
had apelike heads• Lucy discovered in Kenya– Walked upright, had small brain,
fingers were ape-like, hip and knee joins were human like
• Fossil record shows intermediary species that are human and ape like
Lucy
Appearance of Genus Homo
• Bigger brains, lighter skeletons, flatter faces, and smaller teeth