Mammals
516 species
Abert's Squirrel
Sciurus aberti
Agricola's Gracile Opossum
Cryptonanus agricolai
Alaska Marmot
Marmota broweri
Alaska Peninsula Brown Bear
Ursus arctos gyas
Alaskan Hare
Lepus othus
Alaskan Mink
Neogale vison ingens
Alfaro's Pygmy Squirrel
Microsciurus alfari
Allen's Big-eared Bat
Idionycteris phyllotis
Allen's Chipmunk
Neotamias senex
Allen's Olingo
Bassaricyon alleni
Amazon River Dolphin
Inia geoffrensis
Amazon Weasel
Mustela africana
Amazonian Manatee
Trichechus inunguis
American Badger
Taxidea taxus
American Bison
Bison bison
American Black Bear
Ursus americanus
American Hog-nosed Skunk
Conepatus leuconotus
American Marten
Martes americana
American Mink
Neogale vison
American Pika
Ochotona princeps
American Red Squirrel
Tamiasciurus hudsonicus
American Shrew Mole
Neurotrichus gibbsii
American Water Shrew
Sorex palustris
Antelope Jackrabbit
Lepus alleni
Arctic Fox
Vulpes lagopus
Arctic Ground Squirrel
Urocitellus parryii
Arctic Hare
Lepus arcticus
Arctic Shrew
Sorex arcticus
Argentine Brown Bat
Eptesicus furinalis
Arizona Cotton Rat
Sigmodon arizonae
Arizona Gray Squirrel
Sciurus arizonensis
Atlantic Mink
Neogale vison
Atlantic White-sided Dolphin
Lagenorhynchus acutus
Aztec Mouse
Peromyscus aztecus
Baird's Beaked Whale
Berardius bairdii
Baird's Tapir
Tapirus bairdii
Baja California Rock Squirrel
Otospermophilus atricapillus
Bank Vole
Myodes glareolus
Banner-tailed Kangaroo Rat
Dipodomys spectabilis
Belding's Ground Squirrel
Urocitellus beldingi
Beluga Whale
Delphinapterus leucas
Bicolored Roundleaf Bat
Hipposideros bicolor
Big Brown Bat
Eptesicus fuscus
Big Free-tailed Bat
Nyctinomops macrotis
Big Free-tailed Bat
Nyctinomops macrotis
Big Mexican Small-eared Shrew
Cryptotis magna
Big Pocket Gopher
Orthogeomys lanius
Big-eared Climbing Rat
Ototylomys phyllotis
Bighorn Sheep
Ovis canadensis
Black Jackrabbit
Lepus insularis
Black Myotis
Myotis nigricans
Black Rat
Rattus rattus
Black Squirrel
Sciurus carolinensis
Black-bellied Cotton Rat
Sigmodon planifrons
Black-eared Mouse
Peromyscus melanotis
Black-footed Ferret
Mustela nigripes
Black-handed Spider Monkey
Ateles geoffroyi
Black-shouldered Opossum
Caluromysiops irrupta
Black-tailed Jackrabbit
Lepus californicus
Black-tailed Prairie Dog
Cynomys ludovicianus
Black-winged Little Yellow Bat
Rhogeessa tumida
Blackish Small-eared Shrew
Cryptotis nigrescens
Blainville's Beaked Whale
Mesoplodon densirostris
Blue Whale
Balaenoptera musculus
Bobcat
Lynx rufus
Bolivian Squirrel Monkey
Saimiri boliviensis
Botta's Pocket Gopher
Thomomys bottae
Bowhead Whale
Balaena mysticetus
Brazilian Free-tailed Bat
Tadarida brasiliensis
Broad-footed Mole
Scapanus latimanus
Brown Four-eyed Opossum
Metachirus nudicaudatus
Brown Lemming
Lemmus trimucronatus
Brown-throated Three-toed Sloth
Bradypus variegatus
Brush Mouse
Peromyscus boylii
Brush Rabbit
Sylvilagus bachmani
Bryde's Whale
Balaenoptera edeni
Buller's Pocket Gopher
Pappogeomys bulleri
Burmeister's Porpoise
Phocoena spinipinnis
Bushy-tailed Woodrat
Neotoma cinerea
Cacomistle
Bassariscus sumichrasti
California Ground Squirrel
Otospermophilus beecheyi
California Kangaroo Rat
Dipodomys californicus
California Leaf-nosed Bat
Macrotus californicus
California Mouse
Peromyscus californicus
California Myotis
Myotis californicus
California Pocket Mouse
Chaetodipus californicus
California Sea Lion
Zalophus californianus
California Vole
Microtus californicus
Canada Lynx
Lynx canadensis
Canyon Bat
Parastrellus hesperus
Canyon Bat
Lasiurus frantzii
Capybara
Hydrochoerus hydrochaeris
Caribou
Rangifer tarandus
Carmen Mountain Shrew
Sorex milleri
Cave Myotis
Myotis velifer
Central American Agouti
Dasyprocta punctata
Central American Brocket
Mazama temama
Central American Squirrel Monkey
Saimiri oerstedii
Chiapan Deer Mouse
Peromyscus zarhynchus
Chinese Pangolin
Manis pentadactyla
Cinnamon Bear
Ursus americanus
Clymene Dolphin
Stenella clymene
Coast Mole
Scapanus orarius
Collared Lemming
Dicrostonyx groenlandicus
Collared Peccary
Pecari tajacu
Collared Pika
Ochotona collaris
Colorado Chipmunk
Neotamias quadrivittatus
Columbian Black-tailed Deer
Odocoileus hemionus columbianus
Columbian Ground Squirrel
Urocitellus columbianus
Commerson's Dolphin
Cephalorhynchus commersonii
Common Big-eared Bat
Micronycteris megalotis
Common Bottlenose Dolphin
Tursiops truncatus
Common Muskrat
Ondatra zibethicus
Common Opossum
Didelphis marsupialis
Common Vampire Bat
Desmodus rotundus
Coruro
Spalacopus cyanus
Costa Rican Small-eared Shrew
Cryptotis orophila
Cotton Mouse
Peromyscus gossypinus
Coues's Rice Rat
Oryzomys couesi
Coyote
Canis latrans
Cozumel Coati
Nasua nelsoni
Cozumel Raccoon
Procyon pygmaeus
Crawford's Desert Shrew
Notiosorex crawfordi
Creeping Vole
Microtus oregoni
Cuban Fig-eating Bat
Phyllops falcatus
Cuvier's Beaked Whale
Ziphius cavirostris
Dall Sheep
Ovis dalli
Dall's Porpoise
Phocoenoides dalli
Darien Harvest Mouse
Reithrodontomys darienensis
Darien Pocket Gopher
Macrogeomys dariensis
Davy's Naked-backed Bat
Pteronotus davyi
Deer Mouse
Peromyscus maniculatus
Deppe's Squirrel
Sciurus deppei
Derby's Woolly Opossum
Caluromys derbianus
Desert Cottontail
Sylvilagus audubonii
Desert Kangaroo Rat
Dipodomys deserti
Desert Pocket Mouse
Chaetodipus penicillatus
Desert Woodrat
Neotoma lepida
Desmarest's Spiny Pocket Mouse
Heteromys desmarestianus
Diminutive Woodrat
Nelsonia neotomodon
Douglas Squirrel
Tamiasciurus douglasii
Dusky Shrew
Sorex monticolus
Dwarf Shrew
Sorex nanus
Dwarf Sperm Whale
Kogia sima
Eastern Chipmunk
Tamias striatus
Eastern Cottontail
Sylvilagus floridanus
Eastern Coyote
Canis latrans
Eastern Fisher
Pekania pennanti
Eastern Gray Squirrel
Sciurus carolinensis
Eastern Mole
Scalopus aquaticus
Eastern Red Bat
Lasiurus borealis
Eastern Small-footed Bat
Perimyotis subflavus
Eastern Small-footed Myotis
Myotis leibii
Eastern Spotted Skunk
Spilogale putorius
Eastern Wolf
Canis lupus lycaon
Eastern Woodrat
Neotoma floridana
Elk
Cervus canadensis
Elliot's Short-tailed Shrew
Blarina hylophaga
Ermine
Mustela erminea
Ethiopian Harsh-furred Rat
Lophuromys melanonyx
European Free-tailed Bat
Tadarida teniotis
Evening Bat
Nycticeius humeralis
False Killer Whale
Pseudorca crassidens
Feral Cat
Felis catus
Fin Whale
Balaenoptera physalus
Fisher
Pekania pennanti
Flores's Desert Shrew
Notiosorex villai
Florida Black Bear
Ursus americanus floridanus
Florida Key Deer
Odocoileus virginianus clavium
Florida Manatee
Trichechus manatus latirostris
Florida Mouse
Podomys floridanus
Florida Panther
Puma concolor coryi
Fox Squirrel
Sciurus niger
Fraser's Dolphin
Lagenodelphis hosei
Fringe-lipped Bat
Trachops cirrhosus
Fringed Myotis
Myotis thysanodes
Fulvous Harvest Mouse
Reithrodontomys fulvescens
Gaspe Shrew
Sorex gaspensis
Gervais' Beaked Whale
Mesoplodon europaeus
Ghost-faced Bat
Mormoops megalophylla
Giant Mexican Shrew
Megasorex gigas
Giant Otter
Pteronura brasiliensis
Giant Pocket Gopher
Orthogeomys grandis
Gleaning Mouse
Peromyscus spicilegus
Golden Mouse
Ochrotomys nuttalli
Golden-mantled Ground Squirrel
Callospermophilus lateralis
Goldman's Spiny Pocket Mouse
Heteromys goldmani
Goldman's Woodrat
Neotoma goldmani
Gray Four-eyed Opossum
Philander opossum
Gray Fox
Urocyon cinereoargenteus
Gray Myotis
Myotis grisescens
Gray Sac-winged Bat
Balantiopteryx plicata
Gray Seal
Halichoerus grypus
Gray Whale
Eschrichtius robustus
Gray Wolf
Canis lupus
Gray-collared Chipmunk
Neotamias cinereicollis
Grayish Mouse Opossum
Tlacuatzin canescens
Grayish Tayra
Eira barbara senilis
Great Basin Pocket Mouse
Perognathus parvus
Great Plains Wolf
Canis lupus nubilus
Greater Bulldog Bat
Noctilio leporinus
Greater Grison
Galictis vittata
Greater Round-eared Bat
Tonatia bidens
Grizzly Bear
Ursus arctos
Groundhog
Marmota monax
Guatemalan Deer Mouse
Peromyscus guatemalensis
Gunnison's Prairie Dog
Cynomys gunnisoni
Hairy-legged Vampire Bat
Diphylla ecaudata
Hairy-tailed Mole
Parascalops breweri
Harbor Porpoise
Phocoena phocoena
Harbor Seal
Phoca vitulina
Harris's Antelope Squirrel
Ammospermophilus harrisii
Harris's Rice Rat
Tanyuromys aphrastus
Heermann's Kangaroo Rat
Dipodomys heermanni
Heller's Broad-nosed Bat
Platyrrhinus helleri
Hispid Cotton Rat
Sigmodon hispidus
Hispid Pocket Gopher
Heterogeomys hispidus
Hispid Pocket Mouse
Chaetodipus hispidus
Hoary Bat
Lasiurus cinereus
Hoary Marmot
Marmota caligata
Hoffmann's Two-toed Sloth
Choloepus hoffmanni
Honduras Yellow-shouldered Bat
Sturnira hondurensis
Hooded Skunk
Mephitis macroura
Hopi Chipmunk
Neotamias rufus
Hourglass Dolphin
Lagenorhynchus cruciger
House Mouse
Mus musculus
Humboldt's Flying Squirrel
Glaucomys oregonensis
Humpback Whale
Megaptera novaeangliae
Indiana Bat
Myotis sodalis
Indo-Pacific Bottlenose Dolphin
Tursiops aduncus
Indo-Pacific Humpback Dolphin
Sousa chinensis
Isla Cozumel Coati
Nasua narica nelsoni
Island Fox
Urocyon littoralis
Jaguar
Panthera onca
Jaguarundi
Herpailurus yagouaroundi
Jalapan Pine Vole
Microtus quasiater
Jamaican Fruit-eating Bat
Artibeus jamaicensis
Keen's Myotis
Myotis keenii
Kermode Bear
Ursus americanus kermodei
Killer Whale
Orcinus orca
Kinkajou
Potos flavus
Kit Fox
Vulpes macrotis
Kodiak Bear
Ursus arctos middendorffi
La Plata Dolphin
Pontoporia blainvillei
Large Hispid Pocket Gopher
Orthogeomys hispidus
Least Chipmunk
Neotamias minimus
Least Weasel
Mustela nivalis
Lesser Long-nosed Bat
Leptonycteris yerbabuenae
Little Brown Bat
Myotis lucifugus
Little Pocket Mouse
Perognathus longimembris
Little Yellow-eared Bat
Vampyressa pusilla
Lodgepole Chipmunk
Neotamias speciosus
Long-eared Myotis
Myotis evotis
Long-finned Pilot Whale
Globicephala melas
Long-legged Myotis
Myotis volans
Long-tailed Shrew
Sorex dispar
Long-tailed Vole
Microtus longicaudus
Long-tailed Weasel
Mustela frenata
Longman's Beaked Whale
Indopacetus pacificus
Lowland Coati
Nasua narica molaris
Lowland Paca
Cuniculus paca
Lowland Paca
Cuniculus paca
Magdalena Rat
Xenomys nelsoni
Mantled Howler Monkey
Alouatta palliata
Margay
Leopardus wiedii
Margay
Leopardus wiedii cooperi
Marsh Rabbit
Sylvilagus palustris
Marsh Rice Rat
Oryzomys palustris
Masked Shrew
Sorex cinereus
Mazama Pocket Gopher
Thomomys mazama
Meadow Jumping Mouse
Zapus hudsonius
Meadow Vole
Microtus pennsylvanicus
Melon-headed Whale
Peponocephala electra
Merriam's Kangaroo Rat
Dipodomys merriami
Mexican Agouti
Dasyprocta mexicana
Mexican Big-eared Bat
Corynorhinus mexicanus
Mexican Bobcat
Lynx rufus escuinapae
Mexican Cottontail
Sylvilagus cunicularius
Mexican Long-tongued Bat
Choeronycteris mexicana
Mexican Mouse Opossum
Marmosa mexicana
Mexican Porcupine
Coendou mexicanus
Mexican Raccoon
Procyon lotor hernandezii
Mexican Small-eared Shrew
Cryptotis mexicana
Mexican Spiny Pocket Mouse
Liomys irroratus
Mexican Spiny Pocket Mouse
Heteromys irroratus
Mexican Tayra
Eira barbara senilis
Mexican Vole
Microtus mexicanus
Mexican Water Mouse
Rheomys mexicanus
Mexican Wolf
Canis lupus baileyi
Mexican Woodrat
Neotoma mexicana
Michoacan Deer Mouse
Osgoodomys banderanus
Minke Whale
Balaenoptera acutorostrata
Monk Saki
Pithecia monachus
Montane Vole
Microtus montanus
Moose
Alces alces
Mountain Beaver
Aplodontia rufa
Mountain Coati
Nasuella olivacea
Mountain Cottontail
Sylvilagus nuttallii
Mountain Goat
Oreamnos americanus
Mountain Lion
Puma concolor
Mule Deer
Odocoileus hemionus
Musk Ox
Ovibos moschatus
Muskrat
Ondatra zibethicus
Naked-footed Deer Mouse
Peromyscus nudipes
Naked-tailed Climbing Rat
Tylomys nudicaudus
Narwhal
Monodon monoceros
Nelson's Spiny Pocket Mouse
Heteromys nelsoni
Nelson's Woodrat
Neotoma nelsoni
Neotropical River Otter
Lontra longicaudis
New England Cottontail
Sylvilagus transitionalis
Newfoundland Lynx
Lynx canadensis subsolanus
Nine-banded Armadillo
Dasypus novemcinctus
North American Beaver
Castor canadensis
North American Beaver
Castor canadensis
North American Least Shrew
Cryptotis parva
North American Porcupine
Erethizon dorsatum
North American Porcupine
Erethizon dorsatum
North American River Otter
Lontra canadensis
North American River Otter
Lontra canadensis
North American Wolverine
Gulo gulo luscus
North Atlantic Right Whale
Eubalaena glacialis
North Pacific Right Whale
Eubalaena japonica
Northern Bottlenose Whale
Hyperoodon ampullatus
Northern Elephant Seal
Mirounga angustirostris
Northern Flying Squirrel
Glaucomys sabrinus
Northern Fur Seal
Callorhinus ursinus
Northern Grasshopper Mouse
Onychomys leucogaster
Northern Long-eared Bat
Myotis septentrionalis
Northern Pygmy Mouse
Baiomys taylori
Northern Red-backed Vole
Myodes rutilus
Northern Right Whale Dolphin
Lissodelphis borealis
Northern Short-tailed Shrew
Blarina brevicauda
Northern Tamandua
Tamandua mexicana
Northern Yellow Bat
Lasiurus intermedius
Norway Rat
Rattus norvegicus
Nutria
Myocastor coypus
Ocelot
Leopardus pardalis
Oldfield Mouse
Peromyscus polionotus
Olympic Black Bear
Ursus americanus altifrontalis
Olympic Marmot
Marmota olympus
Omura's Whale
Balaenoptera omurai
Oncilla
Leopardus tigrinus
Ord's Kangaroo Rat
Dipodomys ordii
Ornate Shrew
Sorex ornatus
Pacific Coast River Otter
Lontra canadensis
Pacific Marsh Shrew
Sorex bendirii
Pacific Shrew
Sorex pacificus
Pacific Water Shrew
Sorex bendirii
Pacific White-sided Dolphin
Lagenorhynchus obliquidens
Painted Spiny Pocket Mouse
Liomys pictus
Pallas's Long-tongued Bat
Glossophaga soricina
Pallid Bat
Antrozous pallidus
Pallid Bat
Antrozous pallidus
Panama Pocket Gopher
Macrogeomys cavator
Panama Spiny Pocket Mouse
Liomys adspersus
Panamanian Night Monkey
Aotus zonalis
Panamanian White-faced Capuchin
Cebus capucinus
Panamint Chipmunk
Neotamias panamintinus
Pantropical Spotted Dolphin
Stenella attenuata
Parnell's Mustached Bat
Pteronotus parnellii
Peters's Woolly False Vampire Bat
Chrotopterus auritus
Pinon Mouse
Peromyscus truei
Plains Harvest Mouse
Reithrodontomys montanus
Plains Pocket Gopher
Geomys bursarius
Polar Bear
Ursus maritimus
Prairie Mole
Scalopus aquaticus aereus
Prairie Vole
Microtus ochrogaster
Preble's Shrew
Sorex preblei
Proboscis Bat
Rhynchonycteris naso
Pronghorn
Antilocapra americana
Pygmy Killer Whale
Feresa attenuata
Pygmy Raccoon
Procyon pygmaeus
Pygmy Shrew
Sorex hoyi
Pygmy Sperm Whale
Kogia breviceps
Pygmy Three-toed Sloth
Bradypus pygmaeus
Raccoon
Procyon lotor
Raccoon Dog
Nyctereutes procyonoides
Rafinesque's Big-eared Bat
Corynorhinus rafinesquii
Red Brocket Deer
Mazama americana
Red Fox
Vulpes vulpes
Red Squirrel
Tamiasciurus hudsonicus
Red Tree Vole
Arborimus longicaudus
Red Wolf
Canis rufus
Red-bellied Squirrel
Sciurus aureogaster
Richardson's Ground Squirrel
Urocitellus richardsonii
Ringtail
Bassariscus astutus
Risso's Dolphin
Grampus griseus
Rock Squirrel
Otospermophilus variegatus
Roosevelt Elk
Cervus canadensis roosevelti
Round-tailed Muskrat
Neofiber alleni
Sable
Martes zibellina
Sagebrush Vole
Lemmiscus curtatus
Sagebrush Vole
Lagurus curtatus
Salvin's Shrew
Sorex salvini
San Clemente Island Fox
Urocyon littoralis clementae
San Cristobal Shrew
Sorex stizodon
San Joaquin Pocket Mouse
Perognathus inornatus
San Jose Brush Rabbit
Sylvilagus mansuetus
Sea Mink
Neogale macrodon
Sea Otter
Enhydra lutris
Seba's Short-tailed Bat
Carollia perspicillata
Sei Whale
Balaenoptera borealis
Seminole Bat
Lasiurus seminolus
Shaw's Mastiff Bat
Eumops auripendulus
Shiras Moose
Alces alces shirasi
Short-beaked Common Dolphin
Delphinus delphis
Short-finned Pilot Whale
Globicephala macrorhynchus
Silky Anteater
Cyclopes didactylus
Silky Pocket Mouse
Perognathus flavus
Silver-haired Bat
Lasionycteris noctivagans
Singing Vole
Microtus miurus
Slender Harvest Mouse
Reithrodontomys gracilis
Slim-tailed Spiny Pocket Mouse
Heteromys lepturus
Smoky Shrew
Sorex fumeus
Snowshoe Hare
Lepus americanus
Sonoran Woodrat
Neotoma phenax
Sorex ugyunak
Sorex ugyunak
South American Coati
Nasua nasua
Southeastern Pocket Gopher
Geomys pinetis
Southeastern Shrew
Sorex longirostris
Southern Bog Lemming
Synaptomys cooperi
Southern Flying Squirrel
Glaucomys volans
Southern Grasshopper Mouse
Onychomys torridus
Southern Pygmy Mouse
Baiomys musculus
Southern Red-backed Vole
Myodes gapperi
Southern River Otter
Lontra provocax
Southern Short-tailed Shrew
Blarina carolinensis
Southern Spiny Pocket Mouse
Heteromys australis
Southern Spotted Skunk
Spilogale angustifrons
Southwestern Myotis
Myotis auriculus
Sowerby's Beaked Whale
Mesoplodon bidens
Spectral Bat
Vampyrum spectrum
Sperm Whale
Physeter macrocephalus
Spinner Dolphin
Stenella longirostris
Spotted Bat
Euderma maculatum
Spotted Seal
Phoca largha
Star-nosed Mole
Condylura cristata
Steller Sea Lion
Eumetopias jubatus
Stephen's Woodrat
Neotoma stephensi
Stripe-headed Round-eared Bat
Tonatia saurophila
Striped Dolphin
Stenella coeruleoalba
Striped Hog-nosed Skunk
Conepatus semistriatus
Striped Skunk
Mephitis mephitis
Sumichrast's Harvest Mouse
Reithrodontomys sumichrasti
Swift Fox
Vulpes velox
Tayra
Eira barbara
Tayra
Eira barbara
Tehuantepec Jackrabbit
Lepus flavigularis
Texas Antelope Squirrel
Ammospermophilus interpres
Texas Badger
Taxidea taxus berlandieri
Texas Flying Squirrel
Glaucomys volans texensis
Texas Kangaroo Rat
Dipodomys elator
Texas Mole
Scalopus aquaticus texanus
Texas White-tailed Deer
Odocoileus virginianus texanus
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
Townsend's Big-eared Bat
Corynorhinus townsendii
Townsend's Chipmunk
Neotamias townsendii
Townsend's Mole
Scapanus townsendii
Transient Killer Whale
Orcinus orca
Tres Marias Raccoon
Procyon insularis
Tri-colored Bat
Perimyotis subflavus
Tricolored Bat
Perimyotis subflavus
Trowbridge's Shrew
Sorex trowbridgii
Tule Elk
Cervus canadensis nannodes
Underwood's Mastiff Bat
Eumops underwoodi
Utah Prairie Dog
Cynomys parvidens
Vagrant Shrew
Sorex vagrans
Vancouver Island Marmot
Marmota vancouverensis
Variable Pocket Gopher
Orthogeomys heterodus
Variegated Squirrel
Sciurus variegatoides
Velvety Free-tailed Bat
Molossus molossus
Verapaz Shrew
Sorex veraepacis
Vesper Rat
Nyctomys sumichrasti
Virginia Opossum
Didelphis virginiana
Volcano Mouse
Neotomodon alstoni
Volcano Rabbit
Romerolagus diazi
Walrus
Odobenus rosmarus
Water Opossum
Chironectes minimus
Water Vole
Microtus richardsoni
West Indian Manatee
Trichechus manatus
Western Canada Moose
Alces alces andersoni
Western Gray Squirrel
Sciurus griseus
Western Harvest Mouse
Reithrodontomys megalotis
Western Heather Vole
Phenacomys intermedius
Western Jumping Mouse
Zapus princeps
Western Mastiff Bat
Eumops perotis
Western Red Bat
Lasiurus blossevillii
Western Red-backed Vole
Myodes californicus
Western Spotted Skunk
Spilogale gracilis
Western Yellow Bat
Lasiurus xanthinus
White-eared Cotton Rat
Sigmodon leucotis
White-eared Opossum
Didelphis albiventris
White-footed Mouse
Peromyscus leucopus
White-lipped Peccary
Tayassu pecari
White-nosed Coati
Nasua narica
White-sided Jackrabbit
Lepus callotis
White-tailed Antelope Squirrel
Ammospermophilus leucurus
White-tailed Deer
Odocoileus virginianus
White-tailed Jackrabbit
Lepus townsendii
White-tailed Prairie Dog
Cynomys leucurus
White-throated Woodrat
Neotoma albigula
Wolverine
Gulo gulo
Wood Bison
Bison bison athabascae
Woodland Caribou
Rangifer tarandus caribou
Woodland Jumping Mouse
Napaeozapus insignis
Woodland Vole
Microtus pinetorum
Wrinkle-faced Bat
Centurio senex
Wyoming Ground Squirrel
Urocitellus elegans
Yellow-bellied Marmot
Marmota flaviventris
Yellow-faced Pocket Gopher
Cratogeomys castanops
Yellow-nosed Cotton Rat
Sigmodon ochrognathus
Yellow-pine Chipmunk
Neotamias amoenus
Yucatan Deer Mouse
Peromyscus yucatanicus
Yuma Myotis
Myotis yumanensis
Zacatecan Deer Mouse
Peromyscus difficilis
Zempoaltepec Vole
Microtus umbrosus