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13 cards from this deck
Study of rock layers
Date carbon-containing material e.g. wooden handles
Simpler tools are older than complex ones
2.5-1.5 million years ago
Simple pebble tools by hitting rocks
2-0.3 million years ago
Complex tools e.g. simple hand axes
300,000-25,000 years ago
50,000 years ago
5 digits
Similar bone structure, different functions
Evolution from a common ancestor
Real-time natural selection
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