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Evolution Trends - Coggle Diagram

- - - - Allows us to walk upright
    - - Allows spine to hold up skull
    - - Allow to hold weight when walking
        
        large neck muscles not required
    - - Allows centre of gravity to be closer to central axis
- - - - Higher order functional thinking
      - Manipulative skills such as using tools
    - - Greater surface area allows for increase in cerebral cortex