The Call of the Wild

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Across
  1. 1. Carefully observant, watchful, and alert to one's surroundings.
  2. 4. Complete assurance, confidence, or a feeling of absolute certainty.
  3. 6. Existing from the beginning of time; ancient, primary, or fundamental.
  4. 7. Not restrained or controlled; unleashed and free.
  5. 9. In a highly determined manner; persistently holding on to a goal and not easily discouraged.
  6. 14. Impossible to stop, prevent, or resist; relentless and unyielding.
  7. 15. To stop someone from being angry or discontent; to win over, placate, or make peace.
  8. 16. Changed completely in form, nature, or appearance; transformed.
  9. 18. Swiftness of movement; speed and quickness in action.
  10. 19. The capacity to recover quickly from difficulties or to spring back into shape.
  11. 20. Wild, untamed, or having the fierce nature of a wild beast.
Down
  1. 2. Absolutely necessary, essential, or impossible to do without.
  2. 3. Fully satisfied or supplied to excess; having one's desires completely fulfilled.
  3. 5. The power to rule, control, or exercise sovereignty over a territory.
  4. 8. Existing but not yet developed or manifest; hidden or concealed potential.
  5. 10. Unity or agreement of feeling and action, especially among individuals with a common interest.
  6. 11. The state of being strong, active, and full of life; the power to endure and grow.
  7. 12. Exceptional skill, bravery, or masterful ability, especially in physical contests or challenge
  8. 13. Out of the ordinary; unusual, uncommon, or not customary.
  9. 17. Never-ending, everlasting, or occurring repeatedly.