1: The Serra Spanish Mackerel of Scomberomorus brasiliensis
Pop: 4,512 Mil

2: The Sheepshead of Archosargus probatocephalus
Pop: 4,496 Mil

3: The Striped Bass of Morone saxatilis
Pop: 4,488 Mil

4: The Ahaetulla nasuta of Vine Snake
Pop: 4,487 Mil

5: The Pompilidae of Tarantula Hawk
Pop: 4,478 Mil

6: The Eunectes notaeus of Yellow Anaconda
Pop: 4,477 Mil

7: The Boiga dendrophila of Mangrove Snake
Pop: 4,470 Mil

8: The Pseudechis porphyriacus of Red-bellied Black Snake
Pop: 4,468 Mil

9: The Boiga of Cat Snake
Pop: 4,467 Mil

10: The Atlantic Sailfish of Istiophorus albicans
Pop: 4,466 Mil

11: The Acrochordus javanicu of Elephant Trunk Snake
Pop: 4,455 Mil

12: The Rhamphiophis oxyrhynchus of Beaked Snake
Pop: 4,454 Mil

13: The Zamenis longissimus of Aesculapian snake
Pop: 4,437 Mil

14: The Toxotidae of Archer Fish
Pop: 4,427 Mil

15: The Pelochelys cantorii of Giant Softshell Turtle
Pop: 4,346 Mil

16: The Agkistrodon contortrix of American Copperhead
Pop: 4,316 Mil

17: The Bothriechis schlegelii of Eyelash Viper
Pop: 4,313 Mil

18: The Masticophis flagellum of Coachwhip
Pop: 4,308 Mil

19: The Pinniped of California Sea Lion
Pop: 4,305 Mil

20: The Agkistrodon piscivorus of Water Moccasin
Pop: 4,287 Mil

21: The Heterodon platirhinos of Eastern Hognose Snake
Pop: 4,274 Mil

22: The White Marlin of Kajikia albida
Pop: 4,271 Mil

23: The Pit Viper of South American Bushmaster
Pop: 4,120 Mil

24: The Thryothorus ludovicianus of Carolina Wren
Pop: 3,655 Mil

25: The Passerina ciris of Painted Bunting
Pop: 3,652 Mil

26: The Setophaga dominica of Yellow-throated Warbler
Pop: 3,646 Mil

27: The Haliaeetus leucocephalus of Bald-Eagle
Pop: 3,645 Mil

28: The Sialia sialis of Eastern Bluebird
Pop: 3,635 Mil

29: The Buteo jamaicensis of Red-tailed Hawk
Pop: 3,622 Mil

30: The Harpia harpyja of Harpy Eagle
Pop: 3,447 Mil

31: The Defender of Kivu C
Pop: 2,978 Mil

32: The Republic of Clouded Leopard
Pop: 2,405 Mil

33: The Republic of Black Lemur
Pop: 2,082 Mil

34: The Republic of Red Ruffed Lemur
Pop: 2,066 Mil

35: The Republic of Diademed Sifaka
Pop: 2,065 Mil

36: The Republic of Aye-Aye
Pop: 2,061 Mil

37: The Republic of Eastern Woolly Lemur
Pop: 2,060 Mil

38: The Republic of Red-fronted Lemur
Pop: 2,060 Mil

39: The Republic of Golden Bamboo Lemur
Pop: 2,060 Mil

40: The Republic of Verreauxs Sifaka
Pop: 2,059 Mil

41: The Republic of Peyrieras Woolly Lemur
Pop: 2,053 Mil

42: The Republic of Silky Sifaka
Pop: 2,051 Mil

43: The Republic of Cleeses Woolly Lemur
Pop: 2,050 Mil

44: The Republic of Ramanantsoavanas Woolly Lemur
Pop: 2,050 Mil

45: The Republic of Western Woolly Lemur
Pop: 2,049 Mil

46: The Republic of Babakoto
Pop: 2,049 Mil

47: The Republic of Gray-headed Lemur
Pop: 2,049 Mil

48: The Republic of Red-bellied Lemur
Pop: 2,048 Mil

49: The Republic of Red Lemur
Pop: 2,048 Mil

50: The Republic of Blue-eyed Black Lemur
Pop: 2,047 Mil

51: The Republic of Lac Alaotra Gentle Lemur
Pop: 2,046 Mil

52: The Republic of Moores Woolly Lemur
Pop: 2,045 Mil

53: The Republic of Ring-tailed Lemur
Pop: 2,045 Mil

54: The Republic of Milne-Edwards Sifaka
Pop: 2,038 Mil

55: The Republic of Collared Brown Lemur
Pop: 2,037 Mil

56: The Republic of Greater Bamboo Lemur
Pop: 2,037 Mil

57: The Republic of Perriers Sifaka
Pop: 2,035 Mil

58: The Republic of Eastern Lesser Bamboo Lemur
Pop: 2,030 Mil

59: The Republic of Common Brown Lemur
Pop: 2,029 Mil

60: The Republic of Mongoose Lemur
Pop: 2,027 Mil

61: The Republic of Sanfords Brown Lemur
Pop: 2,022 Mil

62: The Republic of Coquerels Sifaka
Pop: 2,020 Mil

63: The Republic of Von der Deckens Sifaka
Pop: 2,018 Mil

64: The Republic of White-headed Lemur
Pop: 2,017 Mil

65: The Republic of Golden-crowned Sifaka
Pop: 2,014 Mil

66: The Republic of Black-and-white Ruffed Lemur
Pop: 2,011 Mil

67: The Republic of Western Lesser Bamboo Lemur
Pop: 2,008 Mil

68: The Republic of Carolina Chickadee
Pop: 1,984 Mil

69: The Republic of Wood Stork
Pop: 1,970 Mil