Across
- 3. – This intelligent marine mammal sleeps with one eye open.
- 5. – The fastest land animal.
- 8. – This bird can’t fly but is an excellent swimmer.
- 9. – The only mammal capable of true flight.
- 10. – This egg-laying mammal has a duck-like bill.
Down
- 1. – This animal moves so slowly that algae grows on its fur.
- 2. – This animal has the same number of neck vertebrae as a human.
- 4. – This sea creature has three hearts.
- 6. – The only animal that can’t jump
- 7. – This Australian marsupial can’t walk backwards.