The following species are documented as being present in Biscayne National Park. Here they have been sorted alphabetically by common name. The list is not exhaustive, and documented sightings of species not on this list are welcome. Submit your sightings to the webmaster.

Atlantic Bottlenose Dolphin, Tursiops truncatus
Black Rat/Roof Rat, Rattus rattus
Bobcat, Lynx rufus
Brazilian free-tailed bat, Tadarida brasiliensis
Cotton Mouse, Peromyscus gossypinus
Finback Whale, Balaenoptera physalus
Gray Fox, Vulpes vulpes
Gray Squirrel, Sciurus carolinensis
Hispid Cotton Rat, Sigmodon hispidus
Humpback Whale, Megaptera novaengliae
Key Largo Cotton Mouse, Peromyscus gossypinus allpaticola
Key Largo Woodrat, Neotoma floridana smalli
Least Shrew, Cryptotis parva
Marsh Rabbit, Sylvilagus palustris
Mexican Red-bellied Squirrel, Sciurus aureogaster
Oppossum, Dideophis virginiana
Raccoon, Procyan lotor
Right Whale, Balaena glacialis
River Otter, Lutra canadensis
Sei Whale, Balaenoptera borealis
Seminole Bat, Lasiurus seminolus
Southern Flying Squirrel, Glaucomys volans
Sperm Whale, Physeter macrocephalus
Striped Skunk, Mephitis mephitis
Virginia Opossom, Didelphis virginiana
Wagner’s mastiff-bat, Eumops glaucinus
West Indian Manatee, Trichechus manatus
White-tailed Deer, Odocoileus virginianus