Here is a list of animals that have become extinct:
1. American mastodon
2. saber-toothed cat
3. bluebuck
4. dwarf Sicilian elephant
5. giant camel
6. warrah
7. giant warthog
8. sivatherium
9. giant ground sloth
10. aurochs
11. bush-antlered deer
12. thylacine
13. dodo
14. gigantopithecus
15. short-faced bear
16. woolly rhinoceros
17. woolly mammoth
18. diprotodon
19. elephant bird
1. American mastodon
2. saber-toothed cat
3. bluebuck
4. dwarf Sicilian elephant
5. giant camel
6. warrah
7. giant warthog
8. sivatherium
9. giant ground sloth
10. aurochs
11. bush-antlered deer
12. thylacine
13. dodo
14. gigantopithecus
15. short-faced bear
16. woolly rhinoceros
17. woolly mammoth
18. diprotodon
19. elephant bird