Lessons

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Across
  1. 4. Flying mammal
  2. 5. over an oceanic subduction zone
  3. 8. Thalassic deity
  4. 9. Latin for "rainstorm" or "storm cloud"
  5. 11. Circular sea formations studied by Darwin
  6. 12. Has a trunk
  7. 13. Rate of flow per unit area
  8. 15. on one side of the Crimean Peninsula
  9. 17. Heron relatives in reeds and marshes
Down
  1. 1. Pinniped
  2. 2. Large marsupial
  3. 3. between high and low water (2 wds.)
  4. 6. Likes to chase mice
  5. 7. Gear for underwater exploration
  6. 10. of cells studied in histology
  7. 14. Piscatorial equipment
  8. 16. Man's best friend