Shark life

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Across
  1. 3. What is the book about
  2. 4. Allows sharks to breath
  3. 5. A group of sharks
  4. 6. Sharks doing this to humans is actually uncommon
  5. 8. The genre of this book (sorry I got a bit desperate)
Down
  1. 1. Helps sharks swim faster
  2. 2. The author of this book also wrote
  3. 3. Most shark attack reports happened in
  4. 4. The author went to see this type of shark
  5. 7. The author did this with sharks