Ice Cold Challenge!

123456789
Across
  1. 5. its dark and windy all season.
  2. 6. known for their external ears and flippers that they use to stand on land
  3. 7. whales that are known for their tusks, like unicorns' horn.
  4. 8. they huddle in large groups to reduce heat-loss
  5. 9. they camouflage changing their fur color to hide from predators.
Down
  1. 1. Herbivores who paw through snow to access food in winter.
  2. 2. their population varies alongside with the lemmings' population, as their main diet.
  3. 3. Largest carnivores on our planet, weighing up to 800kg.
  4. 4. A place that's always ice-cold all year.
  5. 5. a season, where sun rises 24 hours, yet never warm enough.