Animal Classification

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Across
  1. 1. a mammal which can fly
  2. 3. an invertebrate with no legs and a spiral shell
  3. 4. a vertebrate with scales which can breathe underwater
  4. 5. a bird which lays it's eggs in other bird's nests
  5. 6. an invertebrate with 6 legs
  6. 8. a fish which can live in rivers and the ocean
  7. 11. an animal with no backbone (or any bones!)
  8. 13. a vertebrate with fur which gives birth to babies and feeds them with milk
Down
  1. 2. a vertebrate which lays its eggs underwater, but can live on land too
  2. 3. an invertebrate with 8 legs
  3. 4. a type of amphibian without a tail
  4. 7. a vertebrate with scales which breathes air and lays eggs
  5. 9. Britain's only poisonous snake
  6. 10. a vertebrate with feathers which lays eggs
  7. 12. any animal with a backbone