Paleolithic

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Across
  1. 2. (Vertical)
  2. 4. (Horizontal)
  3. 7. — The physical ability to walk upright on two legs, freeing hands for work.
  4. 9. — Moving from place to place in search of food rather than settling down.
  5. 10. — Something Paleolithic humans did not produce because they only gathered for immediate survival needs.
Down
  1. 1. — The long process of biological and social transformation toward modern humans.
  2. 3. — Symbolic sound communication developed to coordinate complex group hunting.
  3. 5. — A hard stone commonly chipped to make sharp handaxes and knives.
  4. 6. — The "Primitive" mode of production characterized by non-hierarchical, collective sharing.
  5. 8. — The opposable digit that allowed precision grip for tool crafting.