Chain Crosswords Short Math Hard — Set 8

Hard 15×15 Set 8
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Across
  1. 1. Large bovine of the plains
  2. 5. Tuxedo-wearing flightless bird
  3. 6. Tusked Arctic marine mammal
  4. 8. Wild dog of Africa and Asia
  5. 9. Tropical bird with huge beak
  6. 10. A word related to animals
  7. 11. Largest living primate
Down
  1. 2. Fish-eating raptor near water
  2. 3. A word related to animals
  3. 4. A word related to animals
  4. 7. Swift hunting bird of prey