sable
saddlebacked tamarin
Sado shrew
Sage's rock rat
sagebrush vole
Saharan striped polecat
Sahel gerbil
saiga
Sakhalin myotis
Salenski's shrew
Salim Ali's fruit bat
Salokko rat
salt marsh harvest mouse
Salt's dik-dik
Salta tuco-tuco
Salvin's big-eyed bat
Salvin's spiny pocket mouse
Samana hutia
Samar squirrel
sambar
Samoan flying fox
San Cristobal shrew
San Diego pocket mouse
San Esteban Island mouse
San Felipe hutia
San Joaquin pocket mouse
San Jose brush rabbit
San Jose island kangaroo rat
San Lorenzo mouse
San Luis tuco-tuco
San Martin Island woodrat
San Quintin kangaroo rat
Sanborn's bonneted bat
Sanborn's flying fox
Sanborn's grass mouse
Sanborn's squirrel
sand cat
sand gerbil
sand-colored soft-furred rat
sandhill dunnart
sandy inland mouse
sandy mole rat
sandy pygmy rice rat
Santa Cruz flying fox
Santa Cruz mouse
Santa Lucia giant rice rat
Santander dwarf squirrel
Santiago Galapagos mouse
Sao Paulo grass mouse
Sao Tomé collared fruit bat
Sao Tomé shrew
Sardinian pika
Saudi gazelle
Saunders's vlei rat
Saussure's shrew
savanna dormouse
savanna gerbil
savanna path shrew
savanna shrew
savanna swamp shrew
Savi's pine vole
Savile's bandicoot rat
scaly-footed small-eared shrew
scaly-tailed possum
Schaller's mouse shrew
Schaub's myotis
Schelkovnikov's pine vole
Schmidts's big-eared bat
Schneider's roundleaf bat
Schomburgk's deer
Schouteden's shrew
Schreber's yellow bat
Schwartz's myotis
scimitar-horned oryx
Sclater's golden mole
Sclater's guenon
Sclater's shrew
Sclater's tiny mouse shrew
Scott's mouse-eared bat
screaming hairy armadillo
scrub hare
Scully's tube-nosed bat
sculptor squirrel
sea otter
Seba's short-tailed bat
Sechura fox
secretive dwarf squirrel
sei whale
Selangor pygmy flying squirrel
Selous's mongoose
seminole bat
Semon's roundleaf bat
Senegal galago
Senegal gerbil
Senegal one-striped grass mouse
sepia short-tailed opossum
Serezkaya shrew
serotine
Serrado Mar grass mouse
serval
servaline genet
servant mouse
Setzer's hairy-footed gerbil
Setzer's mouse-tailed dormouse
Setzer's pygmy mouse
seven-banded armadillo
Severtzov's birch mouse
Severtzov's jerboa
Seychelles flying fox
Seychelles sheath-tailed bat
shadowy broad-nosed bat
shaggy bat
Shamel's horseshoe bat
Shansei vole
Shark Bay mouse
sharp-nosed tomb bat
Sharpe's grysbok
Shaw Mayer's brush mouse
Shaw Mayer's water rat
Shaw's jird
Shepherd's beaked whale
shield-faced roundleaf bat
Shikotan vole
shining thicket rat
Shinto shrew
shiny guinea pig
Shipton's mountain cavy
short-beaked echidna
short-beaked saddleback dolphin
short-eared bat
short-eared dog
short-eared elephant shrew
short-eared rock wallaby
short-faced mole
short-finned pilot whale
short-footed Luzon tree rat
short-furred dasyure
short-furred woolly mouse opossum
short-haired water rat
short-headed broad-nosed bat
short-headed roundleaf bat
short-nosed harvest mouse
short-palated fruit bat
short-snouted elephant shrew
short-tailed bandicoot rat
short-tailed cane mouse
short-tailed chinchilla
short-tailed gymnure
short-tailed hopping mouse
short-tailed mongoose
short-tailed roundleaf bat
short-tailed shrew tenrec
short-tailed spotted cuscus
Shortridge's mouse
Shortridge's multimammate mouse
Shortridge's rat
Shortridge's rock mouse
shrew gymnure
shrew-faced squirrel
shrewish short-tailed opossum
Siberian chipmunk
Siberian flying squirrel
Siberian mole
Siberian musk deer
Siberian shrew
Siberian weasel
Siberian zokor
Siberut flying squirrel
Sichuan field mouse
Sichuan short-tailed shrew
Sicilian shrew
side-striped jackal
Sierra Leone free-tailed bat
Sierra Madre ground squirrel
sika deer
Sikkim rat
Sikkim vole
silent dormouse
silent grass mouse
Silinda rock rat
silky anteater
silky cuscus
silky mouse
silky oldfield mouse
silky pocket mouse
silky short-tailed bat
silky shrew opossum
silky tuco-tuco
silver dik-dik
silver fruit-eating bat
silver mountain vole
silver-gray brushtail possum
silver-haired bat
silver-tailed rock rat
silver-tipped myotis
silvery gibbon
silvery mole rat
silvery-brown bare-face tamarin
Simalur rat
Simian jackal
Simon's spiny rat
Sinaloan mastiff bat
Sinaloan pocket mouse
Sind bat
Singapore whiskered bat
singing vole
single-striped grass mouse
Sipora flying squirrel
Siskiyou chipmunk
sitatunga
Sitka mouse
six-banded armadillo
slaty slender mouse opossum
slender gerbil
slender harvest mouse
slender loris
slender mongoose
slender mosaic-tailed rat
slender oldfield mouse
slender rat
slender shrew
slender squirrel
slender tree shrew
slender yellow bat
slender-tailed deer mouse
slender-tailed dunnart
slender-tailed squirrel
Slevin's mouse
slim-faced slender mouse opossum
Sloggett's vlei rat
sloth bear
slow loris
small Asian sheath-tailed bat
small bent-winged bat
small big-eared brown bat
small fat-tailed opossum
small five-toed jerboa
small hocicudo
small Indian civet
small Japanese field mouse
small Japanese mole
small Luzon forest mouse
small mouse-tailed bat
small pencil-tailed tree mouse
small rufous horseshoe bat
small spiny rat
small sun squirrel
small vesper mouse
small white-toothed rat
small woolly bat
small-eared dormouse
small-eared galago
small-eared pygmy rice rat
small-footed shrew
small-footed water rat
small-spotted genet
small-toothed fruit bat
small-toothed harvest mouse
small-toothed long-eared bat
small-toothed mole
small-toothed palm civet
small-toothed sportive lemur
smaller horseshoe bat
Smith's bush squirrel
Smith's red rockhare
Smith's shrew
Smith's vole
Smith's zokor
smoke-bellied rat
smoky bat
smoky flying squirrel
smoky grass mouse
smoky mouse
smoky pocket gopher
smoky shrew
smoky white-toothed shrew
smooth-coated otter
snow leopard
snow sheep
snow-footed oldfield mouse
snowshoe hare
social tuco-tuco
social vole
Sody's tree rat
soft grass mouse
soft-furred rat
Sokolov's dwarf hamster
Solomons flying fox
Solomons naked-backed fruit bat
Somali elephant shrew
Somali galago
Somali hedgehog
Somali pygmy gerbil
Somali shrew
Somalia gerbil
Somalian gerbil
sombre bat
Sonoma chipmunk
Sonoma tree vole
Sonoran harvest mouse
Sonoran woodrat
sooty dunnart
sooty mustached bat
sooty roundleaf bat
South African fur seal
South African galago
South African ground squirrel
South American coati
South American fur seal
South American spiny mouse
South American squirrel monkey
South American water rat
south China field mouse
southeast Asian long-fingered bat
Southeast Asian shrew
southeastern myotis
southeastern pocket gopher
southeastern shrew
southern African hedgehog
southern Amazon red squirrel
southern big-eared mouse
southern birch mouse
southern blossom bat
southern bog lemming
southern bottlenose whale
southern brown bandicoot
southern climbing mouse
southern dibbler
southern elephant seal
southern flying squirrel
southern free-tailed bat
southern grasshopper mouse
southern hairy-nosed wombat
southern hutia
southern long-nosed armadillo
southern long-nosed bat
southern Luzon giant cloud rat
southern mole vole
southern mountain cavy
southern multimammate mouse
southern myotis
southern naked-tailed armadillo
southern opossum
southern Palawan tree squirrel
southern plains woodrat
southern pocket gopher
southern pudu
southern pygmy mouse
southern red-backed vole
southern reedbuck
southern right whale
southern right whale dolphin
southern river otter
southern short-tailed opossum
southern short-tailed shrew
southern spiny pocket mouse
southern tamandua
southern three-banded armadillo
southern tree hyrax
southern tuco-tuco
southern two-toed sloth
southern viscacha
southern vole
southern water shrew
southern yellow bat
southwest China vole
southwestern myotis
southwestern water vole
sowbug rice rat
Sowerby's beaked whale
Spanish ibex
Spanish lynx
speckled dasyure
speckled ground squirrel
speckled tree rat
spectacled bear
spectacled dormouse
spectacled flying fox
spectacled galago
spectacled hare-wallaby
spectral bat
spectral tarsier
Spegazzini's grass mouse
Speke's gazelle
Speke's pectinator
spinifex hopping mouse
spinner dolphin
spiny Ceram rat
spiny long-footed rat
spiny mouse
spiny pocket mouse
spiny rat
spiny tree rat
Spix's disk-winged bat
Spix's yellow-toothed cavy
splendid climbing mouse
split roundleaf bat
spotted bat
spotted bolo mouse
spotted free-tailed bat
spotted giant flying squirrel
spotted ground squirrel
spotted hyena
spotted linsang
spotted seal
spotted-necked otter
spotted-tailed quoll
spotted-winged fruit bat
sprightly pygmy rice rat
spring hare
springbok
spurred roundleaf bat
Spurrell's free-tailed bat
Spurrell's woolly bat
spy hocicudo
squirrel glider
squirrel-toothed rat
Sri Lanka highland shrew
Sri Lanka shrew
Sri Lankan giant squirrel
Sri Lankan long-tailed shrew
St. Aignan's trumpet-eared bat
St. Lawrence island collared lemming
St. Lawrence island shrew
St. Michel nesophontes
St. Vincent pygmy rice rat
Stankovic's mole
star-nosed mole
steenbok
Steere's spiny rat
Stein's cuscus
Stein's rat
Steinbach's tuco-tuco
Stejneger's beaked whale
Stella wood mouse
Steller sea lion
Steller's sea cow
Stephens's kangaroo rat
Stephens's woodrat
steppe lemming
steppe pika
steppe polecat
Stirton's deer mouse
Stoliczka's mountain vole
Stoliczka's trident bat
Stolzmann's crab-eating rat
stone dormouse
stony shrew
Strachey's mountain vole
Strand's birch mouse
strange big-eared brown bat
strap-toothed whale
straw-colored fruit bat
streaked tenrec
stripe-backed shrew
stripe-faced dunnart
stripe-faced fruit bat
striped Atlantic forest rat
striped bandicoot
striped bush squirrel
striped dolphin
striped dwarf hamster
striped field mouse
striped ground squirrel
striped hairy-nosed bat
striped hog-nosed skunk
striped hyena
striped polecat
striped possum
striped rice rat
striped skunk
striped tree shrew
striped yellow-eared bat
striped-back mouse
striped-necked mongoose
strong tuco-tuco
strong-tailed oldfield mouse
Stuhlmann's golden mole
stump-tailed macaque
stump-tailed porcupine
Sturdee's pipistrelle
Styan's water shrew
subalpine woolly rat
Subantarctic fur seal
sucker-footed bat
Sucre spiny rat
Sudan gerbil
sugar glider
Sula rat
Sulawesi bear rat
Sulawesi forest rat
Sulawesi free-tailed bat
Sulawesi fruit bat
Sulawesi giant rat
Sulawesi giant squirrel
Sulawesi horseshoe bat
Sulawesi montane rat
Sulawesi naked-backed fruit bat
Sulawesi palm civet
Sulawesi rousette
Sulawesi shrew
Sulawesi soft-furred rat
Sulawesi spiny rat
Sulawesi yellow bat
Sulawesian shrew rat
Sumatra water shrew
Sumatran flying squirrel
Sumatran mastiff bat
Sumatran porcupine
Sumatran rabbit
Sumatran rhinoceros
Sumatran shrewlike mouse
Sumatran spiny rat
Sumichrast's harvest mouse
summit rat
sun bear
sun-tailed monkey
sunburned rat
Sunda fruit bat
Sunda long-eared bat
Sunda porcupine
Sunda shrew
Sunda stink badger
Sunda water shrew
Sundevall's jird
Sundevall's roundleaf bat
suni
Surinam spiny tree rat
Svynnerton's bush squirrel
swamp antechinus
swamp musk shrew
swamp rabbit
swamp rat
swamp wallaby
Swan Island hutia
swarthy gerbil
swift fox
swift fruit bat
Swinhoe's striped squirrel
Swinny's horseshoe bat
Szechuan vole
Szechwan myotis
Sömmerring's gazelle