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