Happy New Year!

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Across
  1. 3. (n.) an animal that hunts and kills other animals (8)
  2. 8. (adj.) with no hair on the head (4)
  3. 9. (v./n.) when something becomes less in quantity, level etc.(7)
  4. 10. (adj.) describing a building that is small, warm, and comfortable (4)
  5. 11. (adj.) how you feel when you have achieved something (5)
  6. 12. (n.) sense of ______________ - the ability to find things funny (6)
  7. 15. (n.) gas, coal, oil when used as energy (6,5)
  8. 17. (adj.) a positive word meaning 'thin' (4)
  9. 18. (v.) remove hair using a razor (5)
  10. 20. (n.) living things connected by who eats whom (4,4)
  11. 21. (n.) something you do that you feel proud of (11)
  12. 22. (n.) what happens when the water level gets too high (8)
  13. 24. (adv.) mostly (6)
  14. 25. (n.) environmental problem causing the earth to get hotter (6,7)
  15. 26. (v.) look up to (6)
  16. 28. (n.) result (11)
  17. 31. (adj.) dangerous (5)
  18. 33. (adj.) amazing (7)
  19. 35. (adj.) describing a town or city (5)
  20. 37. (n.) when you stop working at a certain age (e.g. 65) (10)
  21. 39. (n.) ten-year period (6)
  22. 41. (n.) a strong feeling of liking something (7)
  23. 42. (v.) get smaller (6)
  24. 43. (n.) the way somebody looks (10)
  25. 44. (adj.) strange (4)
Down
  1. 1. (n.) a particular type of animal or plant (7)
  2. 2. (adj.) with lots of space (8)
  3. 4. (v.) change completely (9)
  4. 5. (adj.) describing the countryside (5)
  5. 6. (n.) animals that live in nature (8)
  6. 7. (n.) a place to live outside the city centre (7)
  7. 10. (v./n.) make something happen (5)
  8. 13. (n.) all the typical food an animal eats (4)
  9. 14. (n.) what happens when lots of trees are cut down (13)
  10. 16. (n.) something that is difficult to achieve (9)
  11. 19. (n.) the area an animal lives in (7)
  12. 23. (adj.) loud (5)
  13. 27. (expr.) in a zoo, not in the wild (2,9)
  14. 29. (adj.) ____________ species - one that is dying out, or facing extinction (10)
  15. 30. (adj.) when you feel shy or self-conscious (11)
  16. 32. (n.) something that has been designed or created for the first time (9)
  17. 34. (n.) something that happens to you that affects how you feel (10)
  18. 36. (n.) informal name used by family and friends (8)
  19. 37. (v.) leave a job (6)
  20. 38. (adj.) uncomfortable due to lack of space (7)
  21. 40. (adj.) very good looking (8)