Across
- 4. Giant flightless bird from New Zealand
- 5. Caspian species of this big cat is extinct
- 7. The Labrador species of this water bird vanished
- 9. The passenger species of this bird is extinct
- 12. Large, woolly elephant relative from the Ice Age
- 15. Colorful parrot species that went extinct
- 16. Wild mountain goat, last seen in 2000
- 18. Giant river otter that once lived in the Amazon
- 20. Huge wild cattle, ancestor of modern cows
Down
- 1. Big cat with long, curved fangs
- 2. Ice Age elephant with straight tusks
- 3. The golden species of this amphibian is no more
- 6. Extinct zebra with faded stripes
- 8. Giant prehistoric bear that lived in caves
- 10. Prehistoric giant version of this slow animal
- 11. Famous flightless bird, went extinct in the 1600s
- 13. Striped marsupial hunter from Tasmania
- 14. Caribbean monk species of this animal is extinct
- 17. The Falkland Islands species of this predator is gone
- 19. Bulldog species of this rodent disappeared