Lecture 8.pdf

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16 Apr 2012
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Walking with Cavemen 11-09-19 9:07 AM
A. Afarensis
Lucy: is Bipedal, but only bipedal. Nothing else
Africa 8mya
Use hands & feet to move around in dense forestry
Ocean floor is expanding, moving & changing slowly
Plates move, making Himalayas, creating monsoons, rain creates
dry winds for India
Causes bare lands & makes monkeys become land-dwellers
Why 2 feet?
Defining feature to raise babies
40 mya
P. Boysei – can eat toughest vegetation,
H. Habilius – tools
Africa 2 mya has many different types of animals
1.5 Mya
H. Aghasta – smarter, have an edge over the Habillus
Hunters
Brain power changes their way of life
Brain evolution: uses a lot of energy, needs meat.
Sounds! Communication method
No permanent bases, always moving where food is found
Ties of family & friendship
o Helping each other out is key
o Monogamy
First to have noticeably whites to eyes
Ability to leave Africa & go into the world
Africa – middle east – Asia – S. China
o Search for food
o Becomes H. Erectus
H. Erectus
Never used stone axes unlike Aghasta
Used bamboo instead
Adaptable
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