Animals

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Across
  1. 2. - Humans have mouths, Birds have...
  2. 4. - Most of the animals lay them
  3. 6. - considered the most interesting group of animals because some can live on land and in water at the same time
  4. 8. - The name of this group means an animal that crawls or moves on its belly.
  5. 9. - Most of the mammals are covered with it
  6. 11. - People can do it underwater just for a short time
Down
  1. 1. - Humans are in this animal group
  2. 3. - it keeps birds warm
  3. 5. - The fish's body is covered with it
  4. 7. - Only this group of animals can fly
  5. 9. - Their meat includes a high level of protein
  6. 10. - Birds lay eggs in it