Crossword on Unique features of Animals

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Across
  1. 3. It can detect cancer in its owner(3).
  2. 5. It has three hearts(7).
  3. 7. It lives alone(5).
  4. 10. It sleeps for 3yrs(5).
  5. 12. It adopts orphans(8).
  6. 13. It freezes itself without dying(4).
  7. 15. It can sleep up to 22hrs a day(5).
Down
  1. 1. It can view 350 degree(5).
  2. 2. It can lift 50 times its weight(3).
  3. 4. These use names for one another to identify(8).
  4. 6. It has no stomach(8).
  5. 8. It is a Scotland national animal(7).
  6. 9. It also peels and eats like humans(6).
  7. 11. It can swim forward only(5).
  8. 14. It has a black tongue(7).