Polar Bear: A crossword with words related to an article about polar bears

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Across
  1. 3. A class of animals with the ability to produce milk.
  2. 4. A behavior present in mammals, to sleep through winter.
  3. 6. The biological order containing seals.
  4. 7. Skin that blends in your surroundings.
  5. 8. A land or water region/place owned or claimed.
  6. 9. To hunt.
  7. 10. A part of a species life cycle; giving birth.
Down
  1. 1. A vascularized, fat kind of animal skin.
  2. 2. Something focused on water.
  3. 5. A uniform distribution of a species.
  4. 6. Largest land carnivore.