Monster Island has a wide range of animals that lived were brought there due to mostly time traveling and others were introduced to the island continent around several thousands of years ago and later evolved to be new species and subspecies due to living in Monster Island.

They are found throughout the jungles, savannas, glaciers, foothills, lowlands, semi-deserts, alpine meadows, wetlands, boreal birch forests, prairies, scrublands, rocky deserts, temperate grasslands, bamboo forests, rocky deserts, snowy fields, redwood forests, lowlands, steppes, floodplains, rocky mountains, boreal forests, highlands, mountainous plateaus, alpine grasslands, moorlands, tropical grasslands, taiga forests, snowy mountains, temperate forests, icy caves, alpine meadows, temperate woodlands and arctic and tundra regions.

Herbivores:

1. Monster Island ibex: A species of ibex native to Monster Island. They are descendants of walia ibexes, Pyrenean ibexes, feral goats, alpine ibexes and Nubian ibexes that were brought to Monster Island and hybridized with each other, forming a new species. They are found throughout the prairies, highlands, steppes, temperate forests, moorlands, rocky deserts, lowlands, temperate grasslands, rocky mountains, temperate woodlands and alpine meadows of Monster Island. They are now slightly larger and stockier than their ancestors. They lived in large herds up to hundreds due to many predators around.

2. Monster Island tahr: A large species of tahr native to Monster Island. They are descendants of Himalayan tahrs that were brought to Monster Island. They are now slightly larger and bulkier than their ancestors. They are found throughout the steppes, alpine grasslands, moorlands, prairies, snowy mountains, lowlands, scrublands, rocky mountains, highlands, temperate grasslands, alpine meadows and mountainous plateaus. They lived in large herds up to hundreds due to many predators around.

3. Monster Island oryx: A large species of oryx native to Monster Island. They are descendants of gemsboks, scimitar oryxes and Arabian oryxes that were brought to Monster Island and hybridized with each other, forming a new species. They are now larger than their ancestors, about the size of a Roosevelt elk. They are found throughout the savannas, prairies, tropical grasslands, steppes, alpine meadows, semi-deserts, rocky deserts, lowlands, temperate grasslands, scrublands and alpine grasslands. They lived in large herds up to hundreds due to many predators around.

4. Monster Island elk: A large subspecies of elk native to Monster Island. They are descendants of Roosevelt elks, eastern elks and Merriam's elks that were brought to Monster Island and hybridized with each other, forming a new subspecies. They are now slightly larger and bulkier than their ancestors. They are found throughout the lowlands, alpine meadows, prairies, taiga forests, scrublands, redwood forests, temperate grasslands, steppes, boreal forests, temperate woodlands, highlands, alpine grasslands and rocky deserts. They lived in large herds up to hundreds due to many predators around.

5. Monster Island takin: A species of takin native to Monster Island. They are descendants of golden takins and Sichuan takins that were brought to Monster Island and interbred with each other, forming a new subspecies. They are found throughout the lowlands, foothills, snowy mountains, temperate grasslands, highlands, alpine meadows, rocky mountains, mountainous plateaus, redwood forests, alpine grasslands. They lived in large herds up to hundreds due to many predators around.

6. Monster Island kudu: A species of kudu native to Monster Island. .

7. Monster Island topi: A subspecies of topi native to Monster Island. .

8. Monster Island gaur: A subspecies of gaur native to Monster Island. .

9. Monster Island bongo: A species of bongo native to Monster Island. .

10. Monster Island nilgai: A species of nilgai native to Monster Island. .

11. Monster Island gazelle: A species of gazelle native to Monster Island. .

12. Monster Island eland: A subspecies of eland native to Monster Island. .

13. Monster Island yak: A subspecies of wild yak native to Monster Island. .

14. Monster Island addax: A subspecies of addax native to Monster Island. .

15. Monster Island horse: A species of wild horse native to Monster Island. .

16. Monster Island bison: A large species of bison native to Monster Island. .

17. Monster Island sheep: A species of wild sheep native to Monster Island. .

18. Monster Island moose: A subspecies of moose native to Monster Island. .

19. Monster Island chamois: A species of chamois native to Monster Island. .

20. Monster Island impala: A subspecies of impala native to Monster Island. .

21. Monster Island elephant: A species of elephant native to Monster Island. .

22. Monster Island quagga: A subspecies of quagga native to Monster Island. .

23. Monster Island giraffe: A large species of giraffe native to Monster Island. .

24. Monster Island aurochs: A subspecies of aurochs native to Monster Island. .

25. Monster Island buffalo: A large species of buffalo native to Monster Island. .

26. Monster Island caribou: A subspecies of reindeer native to Monster Island. .

27. Monster Island mastodon: A species of mastodon native to Monster Island. .

28. Monster Island red deer: A subspecies of red deer native to Monster Island. .

29. Monster Island blackbuck: A species of blackbuck native to Monster Island. .

30. Monster Island mammoth: A species of mammoth native to Monster Island. .

31. Monster Island sika deer: A subspecies of sika deer native to Monster Island. .

32. Monster Island pronghorn: A species of pronghorn native to Monster Island. .

33. Monster Island chital deer: A subspecies of chital deer native to Monster Island. .

34. Monster Island musk oxen: A subspecies of musk oxen native to Monster Island. .

35. Monster Island hartebeest: A subspecies of hartebeest native to Monster Island. .

36. Monster Island fallow deer: A subspecies of fallow deer native to Monster Island. .

37. Monster Island water buffalo: A species of water buffalo native to Monster Island. .

38. Monster Island stag-moose: A subspecies of stag-moose native to Monster Island. .

39. Monster Island black rhino: A subspecies of black rhino native to Monster Island. .

40. Monster Island white rhino: A subspecies of white rhino native to Monster Island. .

41. Monster Island mule deer: A subspecies of roan antelope native to Monster Island. .

42. Monster Island woolly rhino: A subspecies of woolly rhino native to Monster Island. .

43. Monster Island sambar deer: A subspecies of sambar deer native to Monster Island. .

44. Monster Island scimitar oryx: A subspecies of scimitar oryx native to Monster Island. .

45. Monster Island roan antelope: A subspecies of roan antelope native to Monster Island. .

46. Monster Island saiga antelope: A subspecies of saiga antelope native to Monster Island. .

47. Monster Island sable antelope: A subspecies of sable antelope native to Monster Island. .

48. Monster Island mountain goat: A subspecies of mountain goat native to Monster Island. .

49. Monster Island longhorn bison: A subspecies of longhorn bison native to Monster Island. .

50. Monster Island black wildebeest: A species of black wildebeest native to Monster Island. .

51. Monster Island blue wildebeest: A subspecies of blue wildebeest native to Monster Island. .

52. Monster Island black wildebeest: A subspecies of black wildebeest native to Monster Island. .