The unsolved puzzle

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Across
  1. 2. has biggest egg
  2. 5. Black and white animal
  3. 7. National animal of India
  4. 8. Likes to eat banana
  5. 10. Man's best friend
  6. 12. Has a trunk
  7. 14. Very hard working animal
  8. 15. King of jungle
  9. 16. Can hold a lot of weight
Down
  1. 1. Very clever animal
  2. 3. very fast animal but not the fastest
  3. 4. Large marsupial
  4. 6. Flying mammal
  5. 9. king of the birds
  6. 11. Likes to chase mice
  7. 13. National bird of India