Jayvian puzzle

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Across
  1. 2. over kill
  2. 7. means structures made of large stones
  3. 12. bird do this when the season changes
  4. 13. 12,000 years ago when the first crop
  5. 15. people living together
Down
  1. 1. hunter that gathers
  2. 3. group of fossils and anteaters
  3. 4. period Before written records
  4. 5. land that make a bridge
  5. 6. specific time
  6. 8. A person who has been descended
  7. 9. The early phrase of the Stone Age
  8. 10. every thing covered in ice
  9. 11. kill someone horribly
  10. 14. a device or carry a function