Stone Age food - fill the gaps

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Across
  1. 3. Stone Age people knew how to ____ fish in rivers.
  2. 5. Humans were _________ for much of the Stone Age.
  3. 6. There were also a great source of ______ and fibre.
Down
  1. 1. Stone Age people may have enjoyed a _______ diet than many people living today.
  2. 2. Some things might seem a bit more..._________.
  3. 4. That meant that any injury might be life-threatening.