B2U1&B2U2

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Across
  1. 2. dolphin
  2. 3. attack
  3. 4. extinct
  4. 8. paraphrase
  5. 11. application
  6. 14. comparison
  7. 15. reserve
  8. 18. attempt
  9. 19. species
  10. 20. creatively
  11. 22. recover
  12. 23. process
  13. 26. unusual
  14. 27. worthwhile
  15. 30. prevent
  16. 32. authority
  17. 33. antelope
  18. 34. contribution
  19. 35. establish
  20. 37. historic
  21. 39. disappear
  22. 40. balance
Down
  1. 1. harmony
  2. 2. donate
  3. 4. entrance
  4. 5. document
  5. 6. committee
  6. 7. proposal
  7. 9. quality
  8. 10. sacred
  9. 12. investigate
  10. 13. archaeologist
  11. 16. threaten
  12. 17. department
  13. 18. antelope
  14. 21. identify
  15. 24. kangaroo
  16. 25. attack
  17. 28. habitat
  18. 29. heritage
  19. 30. professional
  20. 31. extinction
  21. 36. binoculars
  22. 38. average