Aquatic Endangered Animals

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Across
  1. 2. Ancient, cartilage-skeleton fish hunted for its fins. (5 letters)
  2. 4. Slow-moving "sea cow" threatened by boat strikes and habitat loss. (8 letters)
  3. 6. Type of endangered whale known for its long, curved jaw (7 letters)
  4. 7. A type of white whale listed under the ESA. (6 letters)
  5. 8. Large endangered mammal, the largest animal ever known (9 letters)
  6. 12. Largest sea turtle, heavily endangered (11 letters)
  7. 14. World's smallest, most endangered porpoise (7 letters)
  8. 15. Semi-aquatic mammal known for floating on its back; "Sea" version is endangered in many regions. (5 letters)
Down
  1. 1. Massive, air-breathing marine mammal often caught in fishing gear. (5 letters)
  2. 3. Critically endangered fish with a long, tooth-lined snout. (7 letters)
  3. 5. Small species of penguin north of the equator (16 letters)
  4. 9. Reptile that nests on beaches and migrates thousands of miles. (9 letters)
  5. 10. Large, prehistoric-looking fish known for its caviar. (9 letters)
  6. 11. Apex predator whale (also known as a Killer Whale) with distinct black-and-white markings. (4 letters)
  7. 13. Arctic whale species identified by its long, spiral tusk. (7 letters)