Chain Crosswords Long Math Hard — Set 2

Hard 15×15 Set 2
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Across
  1. 2. A word related to animals
  2. 4. Tusked Arctic marine mammal
  3. 6. A word related to animals
  4. 8. Common small brown bird
  5. 9. Fastest land animal
  6. 10. Striped-face burrowing mammal
  7. 11. Dark-coated big cat
Down
  1. 1. Tuxedo-wearing flightless bird
  2. 3. Large tropical lizard
  3. 5. Bird with a large bill pouch
  4. 7. A word related to animals