Nature

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Across
  1. 3. the king of the jungle
  2. 6. The most dangerous reptile
  3. 7. They emigrated from the sea to the river for reproduction
  4. 8. poisonous and without legs
Down
  1. 1. big, he used to be inside the water
  2. 2. they are carrying their house everywhere
  3. 4. animal with a long neck
  4. 5. they are laughing the whole time