extinct and vulnerable animals

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Across
  1. 4. Large white animal which lives in the Arctic circle
  2. 6. Furry Australian animal vulnerable
  3. 7. Very large sea animal vulnerable
  4. 8. Frog which eats its eggs and hatches tadpoles in their stomachs
  5. 9. Vulnerable because of chemicals used by farmers
Down
  1. 1. Large cattle which one was in Europe
  2. 2. Chinese animal vulnerable
  3. 3. Lived in Tasmania
  4. 5. A flightless bird which lived on Mauritius