33th one

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Across
  1. 2. - A slow-moving arboreal animal.
  2. 4. - A sea creature with eight arms.
  3. 5. - Flightless African bird.
  4. 7. - Arctic-adapted marine mammal.
  5. 9. - The fastest land animal.
  6. 10. - Bear native to China.
  7. 12. - Largest of the great apes.
  8. 14. - Marsupial with a fondness for eucalyptus leaves.
  9. 15. - Small, spiky mammal.
Down
  1. 1. - A large, predatory reptile.
  2. 3. - Large, semi-aquatic herbivore.
  3. 6. - Swift and graceful antelope.
  4. 8. - Domesticated South American animal.
  5. 9. - A desert-dwelling mammal.
  6. 10. - A bear adapted to icy environments.
  7. 11. - Playful, tree-dwelling primate.
  8. 13. - Flightless, tuxedoed bird.
  9. 14. - Marsupial known for hopping.