There are 234 mammals that start with the letter S, from Sabean Myotis to Swiss Vole. Below you will find them listed alphabetically along with some general information about each. Click the toggle view buttons in the top right corner to switch between the card and the table view.
For each item you will find the following information
Order: The subclass the mammals belongs to
Habitat: The places or type of weather the mammals lives in
Scientific name: The designation that scientists use to catalog the species
Name: Sabean Myotis
Order: Chiroptera
Habitat: Yemen, Saudi Arabia
Scientific name: Myotis similis
Name: Sable
Order: Carnivora
Habitat: Boreal forests of northern Asia
Scientific name: Martes zibellina
Name: Sable Antelope
Order: Artiodactyla
Habitat: Savannas and open woodlands in southern and eastern Africa
Scientific name: Hippotragus niger
Name: Sable Bat
Order: Chiroptera
Habitat: Eastern Australia
Scientific name: Chalinolobus spp.
Name: Sable Deer
Order: Artiodactyla
Habitat: Temperate forests of East Asia
Scientific name: Cervus nippon
Name: Sac-winged Bat
Order: Chiroptera
Habitat: Tropical forests
Scientific name: Saccopteryx spp.
Name: Saddle-backed Tamarin
Order: Primates
Habitat: Tropical rainforests of South America
Scientific name: Saguinus fuscicollis
Name: Saddleback Tamarin
Order: Primates
Habitat: Amazon Rainforest
Scientific name: Saguinus fuscicollis
Name: Saharan Sand Cat
Order: Carnivora
Habitat: Deserts of North Africa
Scientific name: Felis margarita
Name: Saharan Striped Polecat
Order: Carnivora
Habitat: North Africa
Scientific name: Ictonyx libyca
Name: Saiga Antelope
Order: Artiodactyla
Habitat: Grasslands and semi-desert regions of Central Asia
Scientific name: Saiga tatarica
Name: Sakhalin Chipmunk
Order: Rodentia
Habitat: Temperate forests of the Russian Far East
Scientific name: Eutamias sibiricus orientalis
Name: Sakhalin Husky
Order: Carnivora
Habitat: Sakhalin Island in the Russian Far East
Scientific name: Canis lupus spp.
Name: Sakhalin Marten
Order: Carnivora
Habitat: Sakhalin Island in the Russian Far East
Scientific name: Martes sachalinensis
Name: Sakhalin Vole
Order: Rodentia
Habitat: Temperate forests and grasslands of the Russian Far East
Scientific name: Microtus sachalinensis
Name: Saki Monkey
Order: Primates
Habitat: South America
Scientific name: Pithecia spp.
Name: Salar Deer
Order: Artiodactyla
Habitat: High-altitude grasslands of Tibetan Plateau
Scientific name: Cervus albirostris
Name: Saluki
Order: Carnivora
Habitat: Middle East
Scientific name: Canis familiaris
Name: Salvin's Fruit Bat
Order: Chiroptera
Habitat: Tropical forests of Central America
Scientific name: Dermanura salvinii
Name: Sambar Deer
Order: Artiodactyla
Habitat: Forests of Southeast Asia
Scientific name: Rusa unicolor
Name: San Cristobal Deer Mouse
Order: Rodentia
Habitat: Forests of San Cristobal Island
Scientific name: Peromyscus nelsoni
Name: San Cristóbal Mouse Opossum
Order: Didelphimorphia
Habitat: Panama, Colombia
Scientific name: Marmosa isthmica
Name: San Joaquin Kit Fox
Order: Carnivora
Habitat: Arid grasslands and scrublands of California
Scientific name: Vulpes macrotis mutica
Name: San Martín Titi
Order: Primates
Habitat: Peru
Scientific name: Callicebus oenanthe
Name: San Quintín Kangaroo Rat
Order: Rodentia
Habitat: Baja California, Mexico
Scientific name: Dipodomys gravipes
Name: Sand Cat
Order: Carnivora
Habitat: Arid deserts of North Africa and Central Asia
Scientific name: Felis margarita
Name: Sand Rat
Order: Rodentia
Habitat: Arid regions of North Africa and the Middle East
Scientific name: Psammomys obesus
Name: Sandreano's Long-eared Bat
Order: Chiroptera
Habitat: Mountains of Italy
Scientific name: Plecotus andreanii
Name: Sanghir Tarsier
Order: Primates
Habitat: Forests of Sanghir Islands
Scientific name: Tarsius sangirensis
Name: Sanguine Leaf-eared Bat
Order: Chiroptera
Habitat: Tropical forests
Scientific name: Vampyressa thyone
Name: Sanje Mangabey
Order: Primates
Habitat: Endemic to the Udzungwa Mountains of Tanzania
Scientific name: Cercocebus sanjei
Name: Santa Catalina Island Fox
Order: Carnivora
Habitat: Catalina Island off California coast
Scientific name: Urocyon littoralis catalinae
Name: Santillana's Skunk
Order: Carnivora
Habitat: Sumatra and Java
Scientific name: Mydaus javanensis
Name: Saola
Order: Artiodactyla
Habitat: Vietnam and Laos
Scientific name: Pseudoryx nghetinhensis
Name: Saolas
Order: Artiodactyla
Habitat: Rainforests of Vietnam and Laos
Scientific name: Pseudoryx nghetinhensis
Name: Sarawak Shrew
Order: Eulipotyphla
Habitat: Endemic to Borneo
Scientific name: Crocidura sarawakensis
Name: Sardo Mouse
Order: Rodentia
Habitat: Sardinia
Scientific name: Apodemus spp.
Name: Sasquatch
Order: Primates
Habitat: North America
Scientific name: Gigantopithecus blacki
Name: Satanic Leaf-tailed Gecko
Order: Carnivora
Habitat: Southeast Asia
Scientific name: Uropsilus spp.
Name: Saunders's Gull
Order: Charadriiformes
Habitat: Coastal areas of East Asia
Scientific name: Saundersiella zittua
Name: Savannah Elephant Shrew
Order: Macroscelidea
Habitat: Savannas in eastern and southern Africa
Scientific name: Elephantulus brachyrhynchus
Name: Savannah Gerbil
Order: Rodentia
Habitat: Savannas and grasslands in sub-Saharan Africa
Scientific name: Tatera leucogaster
Name: Savannah Hare
Order: Lagomorpha
Habitat: Savannas and grasslands in eastern Africa
Scientific name: Lepus microtis
Name: Savannah Hispid Hare
Order: Lagomorpha
Habitat: Grasslands and savannas in India and Nepal
Scientific name: Caprolagus hispidus
Name: Savannah Monkey
Order: Primates
Habitat: Savannas and woodlands in Africa
Scientific name: Chlorocebus pygerythrus
Name: Savi's Pine Vole
Order: Rodentia
Habitat: Grasslands and meadows of southern Europe
Scientific name: Microtus savii
Name: Savin's Shrew
Order: Eulipotyphla
Habitat: Europe
Scientific name: Sorex savini
Name: Sawtooth Porpoise
Order: Cetacea
Habitat: Coastal waters of East Asia
Scientific name: Neophocaena asiaeorientalis
Name: Scaly-tailed Flying Squirrel
Order: Rodentia
Habitat: Forests of Central and West Africa
Scientific name: Anomalurus spp.
Name: Scaly-tailed Glider
Order: Diprotodontia
Habitat: Eucalyptus forests of eastern Australia
Scientific name: Acrobates pygmaeus
Name: Scheffler's Mole
Order: Eulipotyphla
Habitat: China
Scientific name: Talpa schefferi
Name: Schlieffen's Bat
Order: Chiroptera
Habitat: Arid regions of Africa
Scientific name: Nycticeinops schlieffenii
Name: Scholander's Mouse Opossum
Order: Didelphimorphia
Habitat: Montane Forests of Peru
Scientific name: Marmosops fuscatus
Name: Schomburgk's Deer
Order: Artiodactyla
Habitat: Extinct (last seen in the 1930s)
Scientific name: Rucervus schomburgki
Name: Schreibers' Bat
Order: Chiroptera
Habitat: Europe and Asia
Scientific name: Miniopterus schreibersii
Name: Schreibers' Long-fingered Bat
Order: Chiroptera
Habitat: Europe, Africa, Asia, Australia
Scientific name: Miniopterus schreibersii
Name: Schultz's Mouse
Order: Rodentia
Habitat: Central and East Africa
Scientific name: Mus schultzei
Name: Schwanda's Mouse
Order: Rodentia
Habitat: Endemic to Laos
Scientific name: Mus schwanndavensis
Name: Schwann's Mouse
Order: Rodentia
Habitat: China
Scientific name: Apodemus schwanni
Name: Schwarz's Mouse
Order: Rodentia
Habitat: Central Asia
Scientific name: Mus schwartzi
Name: Schwarz's Myotis
Order: Chiroptera
Habitat: Caves and abandoned mines in Mexico
Scientific name: Myotis planiceps
Name: Schwarz's Roundleaf Bat
Order: Chiroptera
Habitat: Forests of Africa
Scientific name: Hipposideros commersoni
Name: Schwendiman's Vole
Order: Rodentia
Habitat: Endemic to China
Scientific name: Microtus schwendimani
Name: Sclater's Hog-nosed Bat
Order: Chiroptera
Habitat: Central and South America
Scientific name: Platyrrhinus scleratus
Name: Sclater's Lemur
Order: Primates
Habitat: Tropical dry forests of Madagascar
Scientific name: Eulemur flavifrons
Name: Sclater's Mouse Lemur
Order: Primates
Habitat: Forests of eastern Madagascar
Scientific name: Microcebus sclater
Name: Scotopic Tube-nosed Bat
Order: Chiroptera
Habitat: New Guinea
Scientific name: Nyctimene major
Name: Scrub Hare
Order: Lagomorpha
Habitat: Scrublands and deserts in southern Africa
Scientific name: Lepus saxatilis
Name: Sea Cow
Order: Sirenia
Habitat: Coastal waters of the Bering Sea (extinct)
Scientific name: Hydrodamalis gigas
Name: Sea Otter
Order: Carnivora
Habitat: Coastal waters of the North Pacific Ocean
Scientific name: Enhydra lutris
Name: Seba's Short-tailed Bat
Order: Chiroptera
Habitat: Forests of Central and South America
Scientific name: Carollia perspicillata
Name: Seba's Yellow Bat
Order: Chiroptera
Habitat: Tropical forests
Scientific name: Scotophilus nigrita
Name: Seeonee Mouse
Order: Rodentia
Habitat: Endemic to central India
Scientific name: Mus setulosus
Name: Sei Whale
Order: Cetacea
Habitat: Cosmopolitan distribution in temperate and subpolar oceans
Scientific name: Balaenoptera borealis
Name: Seletar Roundleaf Bat
Order: Chiroptera
Habitat: Endemic to Singapore
Scientific name: Hipposideros seletar
Name: Selous' Mongoose
Order: Carnivora
Habitat: Savannas and woodlands in southern Africa
Scientific name: Paracynictis selousi
Name: Selva Grison
Order: Carnivora
Habitat: Tropical forests of Central and South America
Scientific name: Galictis vittata
Name: Semon's Leaf-nosed Bat
Order: Chiroptera
Habitat: Indonesia
Scientific name: Hipposideros semoni
Name: Senegal Bushbaby
Order: Primates
Habitat: Savannas and forests of West Africa
Scientific name: Galago senegalensis
Name: Senegal Galago
Order: Primates
Habitat: Tropical forests and woodlands of West Africa
Scientific name: Galago senegalensis
Name: Senegal Gerbil
Order: Rodentia
Habitat: Savannas and semi-deserts of West Africa
Scientific name: Gerbillus nigeriae
Name: Senegal Mouse
Order: Rodentia
Habitat: Savannas and grasslands of West Africa
Scientific name: Mastomys erythroleucus
Name: Senegalese Mongoose
Order: Carnivora
Habitat: Savanna Woodlands of West Africa
Scientific name: Mungos gambianus
Name: Sengi
Order: Macroscelidea
Habitat: Savannas and semi-deserts of Africa
Scientific name: Elephantulus spp.
Name: Sensitive Lemur
Order: Primates
Habitat: Montane rainforests of Madagascar
Scientific name: Prolemur simus
Name: Serangel's Vole
Order: Rodentia
Habitat: China
Scientific name: Microtus serangelicus
Name: Serengeti Hare
Order: Lagomorpha
Habitat: Tanzania, Kenya
Scientific name: Lepus microtis
Name: Serengeti Lion
Order: Carnivora
Habitat: Savannas and grasslands
Scientific name: Panthera leo
Name: Serengeti Warthog
Order: Artiodactyla
Habitat: East Africa
Scientific name: Phacochoerus africanus
Name: Serian Forest Mouse
Order: Rodentia
Habitat: Endemic to Taiwan
Scientific name: Apodemus serinus
Name: Servaline Genet
Order: Carnivora
Habitat: Central Africa
Scientific name: Genetta servalina
Name: Seychelles Shrew
Order: Eulipotyphla
Habitat: Seychelles Islands
Scientific name: Suncus seychellensis
Name: Shahtoosh Antelope
Order: Artiodactyla
Habitat: Tibet
Scientific name: Pantholops hodgsonii
Name: Sharpe's Grysbok
Order: Artiodactyla
Habitat: Savannas and Woodlands of Southern Africa
Scientific name: Raphicerus sharpei
Name: Shawinka's Bat
Order: Chiroptera
Habitat: Endemic to Vietnam
Scientific name: Pipistrellus shawinkae
Name: Sheath-tailed Bat
Order: Chiroptera
Habitat: Tropical forests and caves of Asia and Oceania
Scientific name: Emballonura
Name: Shiny Woolly Mouse Opossum
Order: Didelphimorphia
Habitat: South America
Scientific name: Caluromys lanatus
Name: Shiratori's Bat
Order: Chiroptera
Habitat: Forests of Japan
Scientific name: Myotis shiratoensis
Name: Shomboi
Order: Primates
Habitat: Endemic to Tanzania
Scientific name: Rungwecebus kipunji
Name: Short-nosed Bandicoot
Order: Peramelemorphia
Habitat: Coastal Forests of Eastern Australia
Scientific name: Isoodon macrourus
Name: Short-tailed Chinchilla
Order: Rodentia
Habitat: Endemic to the Andes of Chile and Peru
Scientific name: Chinchilla chinchilla
Name: Short-tailed Gymnure
Order: Eulipotyphla
Habitat: Forests and scrublands of southern China
Scientific name: Neotetractus sinensis
Name: Shortridge's Fruit Bat
Order: Chiroptera
Habitat: Forests of Southeast Asia
Scientific name: Cynopterus brachyotis
Name: Shortridge's Woolly Bat
Order: Chiroptera
Habitat: India, Southeast Asia
Scientific name: Kerivoula hardwickii
Name: Shrew-Faced Bat
Order: Chiroptera
Habitat: Woodlands and savannas of East Africa
Scientific name: Cleotis percivali
Name: Shrew-faced Bat
Order: Chiroptera
Habitat: Mexico, Central America
Scientific name: Cleotis
Name: Shrew-faced Mongoose
Order: Carnivora
Habitat: West Africa
Scientific name: Xenogale naso
Name: Shrew-faced Musang
Order: Carnivora
Habitat: Southeast Asia
Scientific name: Arctogalidia trivirgata
Name: Sian Pika
Order: Lagomorpha
Habitat: Central Asia
Scientific name: Ochotona syriaca
Name: Siberian Brown Lemming
Order: Rodentia
Habitat: Northern Asia
Scientific name: Lemmus sibiricus
Name: Siberian Chipmunk
Order: Rodentia
Habitat: Temperate and boreal forests of Siberia and Northeast Asia
Scientific name: Tamias sibiricus
Name: Siberian Musk Deer
Order: Artiodactyla
Habitat: Siberia and Northeast Asia
Scientific name: Moschus moschiferus
Name: Sibiryakov's Lemming
Order: Rodentia
Habitat: Arctic tundra of Siberia
Scientific name: Lemmus sibiricus
Name: Sichuan Golden Snub-Nosed Monkey
Order: Primates
Habitat: Mountainous forests of Central China
Scientific name: Rhinopithecus roxellana
Name: Sichuan Snub-nosed Monkey
Order: Primates
Habitat: Temperate forests
Scientific name: Rhinopithecus roxellana
Name: Sierra Madre Ground Squirrel
Order: Rodentia
Habitat: Endemic to Mexico
Scientific name: Spermophilus madrensis
Name: Sierra Nevada Red Fox
Order: Carnivora
Habitat: Western North America
Scientific name: Vulpes necator
Name: Silka Deer
Order: Artiodactyla
Habitat: Japan and Russia
Scientific name: Cervus nippon
Name: Silky Anteater
Order: Pilosa
Habitat: Tropical forests
Scientific name: Cyclopes didactylus
Name: Silky Pocket Mouse
Order: Rodentia
Habitat: North America
Scientific name: Perognathus flavus
Name: Silky Sifaka
Order: Primates
Habitat: Tropical forests
Scientific name: Propithecus candidus
Name: Silver Dik-Dik
Order: Artiodactyla
Habitat: Scrublands of Northeast Africa
Scientific name: Madoqua piacentinii
Name: Silver Dorcopsis
Order: Diprotodontia
Habitat: Endemic to New Guinea
Scientific name: Dorcopsis silvestris
Name: Silver Leaf Monkey
Order: Primates
Habitat: Southeast Asia
Scientific name: Trachypithecus cristatus
Name: Silver Marmoset
Order: Primates
Habitat: Amazon Rainforest
Scientific name: Mico argentatus
Name: Silver Springhare
Order: Rodentia
Habitat: Southern Africa
Scientific name: Pedetes capensis
Name: Silver Vine Civet
Order: Carnivora
Habitat: Forests of Vietnam
Scientific name: Chrotogale owstoni
Name: Silvery Gibbon
Order: Primates
Habitat: Islands of Java and Sumatra
Scientific name: Hylobates moloch
Name: Silvery Mouse Opossum
Order: Didelphimorphia
Habitat: Tropical Forests of Mexico and Central America
Scientific name: Marmosa lepida
Name: Simien Wolf
Order: Carnivora
Habitat: Ethiopia
Scientific name: Canis simensis
Name: Sinai Baton Blue
Order: Lepidoptera
Habitat: Mountainous regions of Sinai Peninsula
Scientific name: Pseudophilotes sinaicus
Name: Sinaloan Pocket Mouse
Order: Rodentia
Habitat: Mexico
Scientific name: Chaetodipus baileyi
Name: Singapore Roundleaf Bat
Order: Chiroptera
Habitat: Tropical forests
Scientific name: Hipposideros microphyllus
Name: Sipora Pig
Order: Artiodactyla
Habitat: Tropical forests
Scientific name: Sus siporanus
Name: Siporagunung Shrew
Order: Soricomorpha
Habitat: Indonesia
Scientific name: Crocidura levicula
Name: Sishuan Partridge
Order: Galliformes
Habitat: Southwest China
Scientific name: Arborophila ruficollis
Name: Sisy Mouse
Order: Rodentia
Habitat: Endemic to China
Scientific name: Mus sishengensis
Name: Sitatunga
Order: Artiodactyla
Habitat: Swamps and Marshes of Central and West Africa
Scientific name: Tragelaphus spekii
Name: Sitwel's Flying Squirrel
Order: Rodentia
Habitat: Endemic to Myanmar
Scientific name: Petaurista sitwellorum
Name: Sky Island Cottontail
Order: Lagomorpha
Habitat: Sky Islands of Southwest North America
Scientific name: Sylvilagus nuttallii
Name: Sleeper Shark
Order: Chondrichthyes
Habitat: Marine
Scientific name: Somniosus microcephalus
Name: Slender Billed Cuscus
Order: Diprotodontia
Habitat: Endemic to New Guinea
Scientific name: Phalanger lullulae
Name: Slender Gibbon
Order: Primates
Habitat: Indonesia
Scientific name: Hylobates moloch
Name: Slender Loris
Order: Primates
Habitat: Tropical forests
Scientific name: Loris lydekkerianus
Name: Slender Mouse Opossum
Order: Didelphimorphia
Habitat: Tropical Forests of South America
Scientific name: Marmosops spp.
Name: Slender Opossum
Order: Didelphimorphia
Habitat: Tropical forests
Scientific name: Marmosa murina
Name: Slender Skunk
Order: Carnivora
Habitat: North America
Scientific name: Mephitis longicauda
Name: Slender Squirrel
Order: Rodentia
Habitat: Colombia, Ecuador, Peru
Scientific name: Microsciurus mimulus
Name: Slender-horned Gazelle
Order: Artiodactyla
Habitat: Deserts
Scientific name: Gazella leptoceros
Name: Slender-tailed Cloud Rat
Order: Rodentia
Habitat: Tropical forests
Scientific name: Phloeomys cumingi
Name: Slow Loris
Order: Primates
Habitat: Forests of Southeast Asia
Scientific name: Nycticebus spp.
Name: Small Indian Civet
Order: Carnivora
Habitat: Asia
Scientific name: Viverricula indica
Name: Small-eared Shrew
Order: Eulipotyphla
Habitat: North and Central America
Scientific name: Cryptotis parva
Name: Small-eared Zokors
Order: Rodentia
Habitat: Grasslands and scrublands
Scientific name: Eospalax fontanierii
Name: Small-footed Myotis
Order: Chiroptera
Habitat: North America
Scientific name: Myotis leibii
Name: Small-toothed Ferret-badger
Order: Carnivora
Habitat: East Asia
Scientific name: Melogale moschata
Name: Small-toothed Palm Civet
Order: Carnivora
Habitat: Southeast Asia
Scientific name: Arctogalidia trivirgata
Name: Sminthopsis Mouse
Order: Dasyuromorphia
Habitat: Australia
Scientific name: Sminthopsis spp.
Name: Smoky Bat
Order: Chiroptera
Habitat: Europe and Asia
Scientific name: Nyctalus noctula
Name: Smoky Jungle Frog
Order: Anura
Habitat: South and Central America
Scientific name: Leptodactylus pentadactylus
Name: Smooth-coated Otter
Order: Carnivora
Habitat: Wetland and rivers
Scientific name: Lutrogale perspicillata
Name: Snowshoe Hare
Order: Lagomorpha
Habitat: Boreal and temperate forests
Scientific name: Lepus americanus
Name: Snub-nosed Monkey
Order: Primates
Habitat: China
Scientific name: Rhinopithecus spp.
Name: Soala
Order: Artiodactyla
Habitat: Tropical forests
Scientific name: Pseudoryx nghetinhensis
Name: Socorro Lemming Mouse
Order: Rodentia
Habitat: Mexico
Scientific name: Nearctomys lemmus
Name: Sokoke Bushy-tailed Mongoose
Order: Carnivora
Habitat: Kenya
Scientific name: Bdeogale omnivora
Name: Sokotra Horseshoe Bat
Order: Chiroptera
Habitat: Socotra Island, Yemen
Scientific name: Rhinolophus clivosus
Name: Sokotra Mouse
Order: Rodentia
Habitat: Socotra Island, Yemen
Scientific name: Myomyscus viarius
Name: Solenodon
Order: Eulipotyphla
Habitat: Caribbean islands
Scientific name: Solenodon spp.
Name: Solenodonte de Cuba
Order: Eulipotyphla
Habitat: Cuba
Scientific name: Solenodon cubanus
Name: Solenodonte de Hispaniola
Order: Eulipotyphla
Habitat: Hispaniola
Scientific name: Solenodon paradoxus
Name: Sonoran Desert Shrew
Order: Eulipotyphla
Habitat: Southwestern United States, Mexico
Scientific name: Notiosorex crawfordi
Name: Sooty Grunter
Order: Actinopterygii
Habitat: Rivers and lakes
Scientific name: Hephaestus fuliginosus
Name: South African Hedgehog
Order: Erinaceomorpha
Habitat: Southern Africa
Scientific name: Atelerix frontalis
Name: South African Rock Dassie
Order: Hyracoidea
Habitat: Southern Africa
Scientific name: Procavia capensis
Name: South African Springhare
Order: Rodentia
Habitat: Savannas and grasslands
Scientific name: Pedetes capensis
Name: South American Cotton Rat
Order: Rodentia
Habitat: South America
Scientific name: Sigmodon spp.
Name: South American Fur Seal
Order: Carnivora
Habitat: South America
Scientific name: Arctocephalus australis
Name: South American Gray Fox
Order: Carnivora
Habitat: South America
Scientific name: Lycalopex griseus
Name: South American Leaf-eared Mouse
Order: Rodentia
Habitat: South America
Scientific name: Phyllotis spp.
Name: South American Sea Lion
Order: Carnivora
Habitat: South America
Scientific name: Otaria flavescens
Name: South American Water Rat
Order: Rodentia
Habitat: South America
Scientific name: Nectomys spp.
Name: South Andean Huemul
Order: Artiodactyla
Habitat: South America
Scientific name: Hippocamelus bisulcus
Name: South Central American Spiny Mouse
Order: Rodentia
Habitat: Central America
Scientific name: Neacomys musseri
Name: Southern Bandicoot
Order: Peramelemorphia
Habitat: Australia
Scientific name: Isoodon obesulus
Name: Southern Bent-winged Bat
Order: Chiroptera
Habitat: Caves and mines
Scientific name: Miniopterus schreibersii
Name: Southern Bottlenose Whale
Order: Cetacea
Habitat: Marine
Scientific name: Hyperoodon planifrons
Name: Southern Damara Mole-rat
Order: Rodentia
Habitat: Southern Africa
Scientific name: Cryptomys hottentotus natalensis
Name: Southern Elephant Seal
Order: Carnivora
Habitat: Southern Ocean
Scientific name: Mirounga leonina
Name: Southern Marsupial Mole
Order: Notoryctemorphia
Habitat: Deserts
Scientific name: Notoryctes typhlops
Name: Southern Muriqui
Order: Primates
Habitat: Brazil
Scientific name: Brachyteles arachnoides
Name: Southern Philippines Montane Squirrel
Order: Rodentia
Habitat: Philippines
Scientific name: Sundasciurus mindanensis
Name: Southern Right Whale Dolphin
Order: Cetacea
Habitat: Southern Ocean
Scientific name: Lissodelphis peronii
Name: Southern Tamandua
Order: Pilosa
Habitat: Tropical forests
Scientific name: Tamandua tetradactyla
Name: Southern Tree Hyrax
Order: Hyracoidea
Habitat: Tropical forests
Scientific name: Dendrohyrax arboreus
Name: Southern Treeshrew
Order: Scandentia
Habitat: Southeast Asia
Scientific name: Tupaia minor
Name: Southwestern Beardless Bat
Order: Chiroptera
Habitat: Western North America
Scientific name: Antrozous pallidus
Name: Sowerbys Beaked Whale
Order: Cetacea
Habitat: North Atlantic, North Pacific
Scientific name: Mesoplodon bidens
Name: Spectacled Hare-wallaby
Order: Phalangeriformes
Habitat: Tropical savannas
Scientific name: Lagorchestes conspicillatus
Name: Spectacled Langur
Order: Primates
Habitat: Tropical forests
Scientific name: Trachypithecus obscurus
Name: Spectral Bat
Order: Chiroptera
Habitat: Tropical forests
Scientific name: Vampyrum spectrum
Name: Spilogale Skunk
Order: Carnivora
Habitat: North America
Scientific name: Spilogale spp.
Name: Spiny Bandicoot
Order: Peramelemorphia
Habitat: New Guinea
Scientific name: Echymipera spp.
Name: Spiny Pocket Mouse
Order: Rodentia
Habitat: North America
Scientific name: Chaetodipus spp.
Name: Spiny Shrew
Order: Eulipotyphla
Habitat: Europe and Asia
Scientific name: Sorex araneus
Name: Spotted Bat
Order: Chiroptera
Habitat: North America
Scientific name: Euderma maculatum
Name: Spotted Cuscus
Order: Diprotodontia
Habitat: New Guinea
Scientific name: Spilocuscus maculatus
Name: Spotted Saki
Order: Primates
Habitat: South America
Scientific name: Pithecia pithecia
Name: Spotted-tailed Quoll
Order: Dasyuromorphia
Habitat: Australia, Tasmania
Scientific name: Dasyurus maculatus
Name: Squirrel Glider
Order: Diprotodontia
Habitat: Temperate forests
Scientific name: Petaurus norfolcensis
Name: Sri Lankan Mouse Deer
Order: Artiodactyla
Habitat: Sri Lanka
Scientific name: Moschiola meminna
Name: Stanisic's Shrew
Order: Eulipotyphla
Habitat: Indonesia
Scientific name: Crocidura stanisici
Name: Starry Bat
Order: Chiroptera
Habitat: North America
Scientific name: Lasionycteris noctivagans
Name: Steller's Sea Cow
Order: Sirenia
Habitat: Marine
Scientific name: Hydrodamalis gigas
Name: Steller's Sea Lion
Order: Carnivora
Habitat: Marine
Scientific name: Eumetopias jubatus
Name: Striped Dolphin
Order: Cetacea
Habitat: Marine
Scientific name: Stenella coeruleoalba
Name: Sulawesi Bear Cuscus
Order: Diprotodontia
Habitat: Indonesia
Scientific name: Ailurops ursinus
Name: Sulawesi Dwarf Cuscus
Order: Diprotodontia
Habitat: Indonesia
Scientific name: Strigocuscus celebensis
Name: Sulawesi Dwarf Squirrel
Order: Rodentia
Habitat: Indonesia
Scientific name: Prosciurillus abstrusus
Name: Sulawesi Rat
Order: Rodentia
Habitat: Indonesia
Scientific name: Taeromys spp.
Name: Sulawesi Striped Civet
Order: Carnivora
Habitat: Indonesia
Scientific name: Hemigalus hosei
Name: Sumatran Langur
Order: Primates
Habitat: Indonesia
Scientific name: Presbytis melalophos
Name: Sumatran Rhinoceros
Order: Perissodactyla
Habitat: Tropical forests
Scientific name: Dicerorhinus sumatrensis
Name: Sumatran Serow
Order: Artiodactyla
Habitat: Tropical forests
Scientific name: Capricornis sumatraensis
Name: Sumatran Striped Rabbit
Order: Lagomorpha
Habitat: Indonesia
Scientific name: Nesolagus netscheri
Name: Sunda Colugo
Order: Dermoptera
Habitat: Southeast Asia
Scientific name: Galeopterus variegatus
Name: Sunda Pangolin
Order: Pholidota
Habitat: Southeast Asia
Scientific name: Manis javanica
Name: Sundaland Short-tailed Gymnure
Order: Erinaceomorpha
Habitat: Tropical forests
Scientific name: Hylomys suillus
Name: Sundevall's Jird
Order: Rodentia
Habitat: North Africa, Middle East
Scientific name: Meriones crassus
Name: Sundevall's Leaf-nosed Bat
Order: Chiroptera
Habitat: Africa
Scientific name: Hipposideros caffer
Name: Sunga's Shrew
Order: Eulipotyphla
Habitat: Indonesia
Scientific name: Crocidura sungae
Name: Swamp Monkey
Order: Primates
Habitat: Central Africa
Scientific name: Allenopithecus nigroviridis
Name: Swinhoe's Lesser Bamboo Bat
Order: Chiroptera
Habitat: East Asia
Scientific name: Tylonycteris pachypus
Name: Swiss Vole
Order: Rodentia
Habitat: Italy, Switzerland
Scientific name: Microtus multiplex
| Name | Order | Habitat | Scientific name |
|---|---|---|---|
| Sabean Myotis | Chiroptera | Yemen, Saudi Arabia | Myotis similis |
| Sable | Carnivora | Boreal forests of northern Asia | Martes zibellina |
| Sable Antelope | Artiodactyla | Savannas and open woodlands in southern and eastern Africa | Hippotragus niger |
| Sable Bat | Chiroptera | Eastern Australia | Chalinolobus spp. |
| Sable Deer | Artiodactyla | Temperate forests of East Asia | Cervus nippon |
| Sac-winged Bat | Chiroptera | Tropical forests | Saccopteryx spp. |
| Saddle-backed Tamarin | Primates | Tropical rainforests of South America | Saguinus fuscicollis |
| Saddleback Tamarin | Primates | Amazon Rainforest | Saguinus fuscicollis |
| Saharan Sand Cat | Carnivora | Deserts of North Africa | Felis margarita |
| Saharan Striped Polecat | Carnivora | North Africa | Ictonyx libyca |
| Saiga Antelope | Artiodactyla | Grasslands and semi-desert regions of Central Asia | Saiga tatarica |
| Sakhalin Chipmunk | Rodentia | Temperate forests of the Russian Far East | Eutamias sibiricus orientalis |
| Sakhalin Husky | Carnivora | Sakhalin Island in the Russian Far East | Canis lupus spp. |
| Sakhalin Marten | Carnivora | Sakhalin Island in the Russian Far East | Martes sachalinensis |
| Sakhalin Vole | Rodentia | Temperate forests and grasslands of the Russian Far East | Microtus sachalinensis |
| Saki Monkey | Primates | South America | Pithecia spp. |
| Salar Deer | Artiodactyla | High-altitude grasslands of Tibetan Plateau | Cervus albirostris |
| Saluki | Carnivora | Middle East | Canis familiaris |
| Salvin's Fruit Bat | Chiroptera | Tropical forests of Central America | Dermanura salvinii |
| Sambar Deer | Artiodactyla | Forests of Southeast Asia | Rusa unicolor |
| San Cristobal Deer Mouse | Rodentia | Forests of San Cristobal Island | Peromyscus nelsoni |
| San Cristóbal Mouse Opossum | Didelphimorphia | Panama, Colombia | Marmosa isthmica |
| San Joaquin Kit Fox | Carnivora | Arid grasslands and scrublands of California | Vulpes macrotis mutica |
| San Martín Titi | Primates | Peru | Callicebus oenanthe |
| San Quintín Kangaroo Rat | Rodentia | Baja California, Mexico | Dipodomys gravipes |
| Sand Cat | Carnivora | Arid deserts of North Africa and Central Asia | Felis margarita |
| Sand Rat | Rodentia | Arid regions of North Africa and the Middle East | Psammomys obesus |
| Sandreano's Long-eared Bat | Chiroptera | Mountains of Italy | Plecotus andreanii |
| Sanghir Tarsier | Primates | Forests of Sanghir Islands | Tarsius sangirensis |
| Sanguine Leaf-eared Bat | Chiroptera | Tropical forests | Vampyressa thyone |
| Sanje Mangabey | Primates | Endemic to the Udzungwa Mountains of Tanzania | Cercocebus sanjei |
| Santa Catalina Island Fox | Carnivora | Catalina Island off California coast | Urocyon littoralis catalinae |
| Santillana's Skunk | Carnivora | Sumatra and Java | Mydaus javanensis |
| Saola | Artiodactyla | Vietnam and Laos | Pseudoryx nghetinhensis |
| Saolas | Artiodactyla | Rainforests of Vietnam and Laos | Pseudoryx nghetinhensis |
| Sarawak Shrew | Eulipotyphla | Endemic to Borneo | Crocidura sarawakensis |
| Sardo Mouse | Rodentia | Sardinia | Apodemus spp. |
| Sasquatch | Primates | North America | Gigantopithecus blacki |
| Satanic Leaf-tailed Gecko | Carnivora | Southeast Asia | Uropsilus spp. |
| Saunders's Gull | Charadriiformes | Coastal areas of East Asia | Saundersiella zittua |
| Savannah Elephant Shrew | Macroscelidea | Savannas in eastern and southern Africa | Elephantulus brachyrhynchus |
| Savannah Gerbil | Rodentia | Savannas and grasslands in sub-Saharan Africa | Tatera leucogaster |
| Savannah Hare | Lagomorpha | Savannas and grasslands in eastern Africa | Lepus microtis |
| Savannah Hispid Hare | Lagomorpha | Grasslands and savannas in India and Nepal | Caprolagus hispidus |
| Savannah Monkey | Primates | Savannas and woodlands in Africa | Chlorocebus pygerythrus |
| Savi's Pine Vole | Rodentia | Grasslands and meadows of southern Europe | Microtus savii |
| Savin's Shrew | Eulipotyphla | Europe | Sorex savini |
| Sawtooth Porpoise | Cetacea | Coastal waters of East Asia | Neophocaena asiaeorientalis |
| Scaly-tailed Flying Squirrel | Rodentia | Forests of Central and West Africa | Anomalurus spp. |
| Scaly-tailed Glider | Diprotodontia | Eucalyptus forests of eastern Australia | Acrobates pygmaeus |
| Scheffler's Mole | Eulipotyphla | China | Talpa schefferi |
| Schlieffen's Bat | Chiroptera | Arid regions of Africa | Nycticeinops schlieffenii |
| Scholander's Mouse Opossum | Didelphimorphia | Montane Forests of Peru | Marmosops fuscatus |
| Schomburgk's Deer | Artiodactyla | Extinct (last seen in the 1930s) | Rucervus schomburgki |
| Schreibers' Bat | Chiroptera | Europe and Asia | Miniopterus schreibersii |
| Schreibers' Long-fingered Bat | Chiroptera | Europe, Africa, Asia, Australia | Miniopterus schreibersii |
| Schultz's Mouse | Rodentia | Central and East Africa | Mus schultzei |
| Schwanda's Mouse | Rodentia | Endemic to Laos | Mus schwanndavensis |
| Schwann's Mouse | Rodentia | China | Apodemus schwanni |
| Schwarz's Mouse | Rodentia | Central Asia | Mus schwartzi |
| Schwarz's Myotis | Chiroptera | Caves and abandoned mines in Mexico | Myotis planiceps |
| Schwarz's Roundleaf Bat | Chiroptera | Forests of Africa | Hipposideros commersoni |
| Schwendiman's Vole | Rodentia | Endemic to China | Microtus schwendimani |
| Sclater's Hog-nosed Bat | Chiroptera | Central and South America | Platyrrhinus scleratus |
| Sclater's Lemur | Primates | Tropical dry forests of Madagascar | Eulemur flavifrons |
| Sclater's Mouse Lemur | Primates | Forests of eastern Madagascar | Microcebus sclater |
| Scotopic Tube-nosed Bat | Chiroptera | New Guinea | Nyctimene major |
| Scrub Hare | Lagomorpha | Scrublands and deserts in southern Africa | Lepus saxatilis |
| Sea Cow | Sirenia | Coastal waters of the Bering Sea (extinct) | Hydrodamalis gigas |
| Sea Otter | Carnivora | Coastal waters of the North Pacific Ocean | Enhydra lutris |
| Seba's Short-tailed Bat | Chiroptera | Forests of Central and South America | Carollia perspicillata |
| Seba's Yellow Bat | Chiroptera | Tropical forests | Scotophilus nigrita |
| Seeonee Mouse | Rodentia | Endemic to central India | Mus setulosus |
| Sei Whale | Cetacea | Cosmopolitan distribution in temperate and subpolar oceans | Balaenoptera borealis |
| Seletar Roundleaf Bat | Chiroptera | Endemic to Singapore | Hipposideros seletar |
| Selous' Mongoose | Carnivora | Savannas and woodlands in southern Africa | Paracynictis selousi |
| Selva Grison | Carnivora | Tropical forests of Central and South America | Galictis vittata |
| Semon's Leaf-nosed Bat | Chiroptera | Indonesia | Hipposideros semoni |
| Senegal Bushbaby | Primates | Savannas and forests of West Africa | Galago senegalensis |
| Senegal Galago | Primates | Tropical forests and woodlands of West Africa | Galago senegalensis |
| Senegal Gerbil | Rodentia | Savannas and semi-deserts of West Africa | Gerbillus nigeriae |
| Senegal Mouse | Rodentia | Savannas and grasslands of West Africa | Mastomys erythroleucus |
| Senegalese Mongoose | Carnivora | Savanna Woodlands of West Africa | Mungos gambianus |
| Sengi | Macroscelidea | Savannas and semi-deserts of Africa | Elephantulus spp. |
| Sensitive Lemur | Primates | Montane rainforests of Madagascar | Prolemur simus |
| Serangel's Vole | Rodentia | China | Microtus serangelicus |
| Serengeti Hare | Lagomorpha | Tanzania, Kenya | Lepus microtis |
| Serengeti Lion | Carnivora | Savannas and grasslands | Panthera leo |
| Serengeti Warthog | Artiodactyla | East Africa | Phacochoerus africanus |
| Serian Forest Mouse | Rodentia | Endemic to Taiwan | Apodemus serinus |
| Servaline Genet | Carnivora | Central Africa | Genetta servalina |
| Seychelles Shrew | Eulipotyphla | Seychelles Islands | Suncus seychellensis |
| Shahtoosh Antelope | Artiodactyla | Tibet | Pantholops hodgsonii |
| Sharpe's Grysbok | Artiodactyla | Savannas and Woodlands of Southern Africa | Raphicerus sharpei |
| Shawinka's Bat | Chiroptera | Endemic to Vietnam | Pipistrellus shawinkae |
| Sheath-tailed Bat | Chiroptera | Tropical forests and caves of Asia and Oceania | Emballonura |
| Shiny Woolly Mouse Opossum | Didelphimorphia | South America | Caluromys lanatus |
| Shiratori's Bat | Chiroptera | Forests of Japan | Myotis shiratoensis |
| Shomboi | Primates | Endemic to Tanzania | Rungwecebus kipunji |
| Short-nosed Bandicoot | Peramelemorphia | Coastal Forests of Eastern Australia | Isoodon macrourus |
| Short-tailed Chinchilla | Rodentia | Endemic to the Andes of Chile and Peru | Chinchilla chinchilla |
| Short-tailed Gymnure | Eulipotyphla | Forests and scrublands of southern China | Neotetractus sinensis |
| Shortridge's Fruit Bat | Chiroptera | Forests of Southeast Asia | Cynopterus brachyotis |
| Shortridge's Woolly Bat | Chiroptera | India, Southeast Asia | Kerivoula hardwickii |
| Shrew-Faced Bat | Chiroptera | Woodlands and savannas of East Africa | Cleotis percivali |
| Shrew-faced Bat | Chiroptera | Mexico, Central America | Cleotis |
| Shrew-faced Mongoose | Carnivora | West Africa | Xenogale naso |
| Shrew-faced Musang | Carnivora | Southeast Asia | Arctogalidia trivirgata |
| Sian Pika | Lagomorpha | Central Asia | Ochotona syriaca |
| Siberian Brown Lemming | Rodentia | Northern Asia | Lemmus sibiricus |
| Siberian Chipmunk | Rodentia | Temperate and boreal forests of Siberia and Northeast Asia | Tamias sibiricus |
| Siberian Musk Deer | Artiodactyla | Siberia and Northeast Asia | Moschus moschiferus |
| Sibiryakov's Lemming | Rodentia | Arctic tundra of Siberia | Lemmus sibiricus |
| Sichuan Golden Snub-Nosed Monkey | Primates | Mountainous forests of Central China | Rhinopithecus roxellana |
| Sichuan Snub-nosed Monkey | Primates | Temperate forests | Rhinopithecus roxellana |
| Sierra Madre Ground Squirrel | Rodentia | Endemic to Mexico | Spermophilus madrensis |
| Sierra Nevada Red Fox | Carnivora | Western North America | Vulpes necator |
| Silka Deer | Artiodactyla | Japan and Russia | Cervus nippon |
| Silky Anteater | Pilosa | Tropical forests | Cyclopes didactylus |
| Silky Pocket Mouse | Rodentia | North America | Perognathus flavus |
| Silky Sifaka | Primates | Tropical forests | Propithecus candidus |
| Silver Dik-Dik | Artiodactyla | Scrublands of Northeast Africa | Madoqua piacentinii |
| Silver Dorcopsis | Diprotodontia | Endemic to New Guinea | Dorcopsis silvestris |
| Silver Leaf Monkey | Primates | Southeast Asia | Trachypithecus cristatus |
| Silver Marmoset | Primates | Amazon Rainforest | Mico argentatus |
| Silver Springhare | Rodentia | Southern Africa | Pedetes capensis |
| Silver Vine Civet | Carnivora | Forests of Vietnam | Chrotogale owstoni |
| Silvery Gibbon | Primates | Islands of Java and Sumatra | Hylobates moloch |
| Silvery Mouse Opossum | Didelphimorphia | Tropical Forests of Mexico and Central America | Marmosa lepida |
| Simien Wolf | Carnivora | Ethiopia | Canis simensis |
| Sinai Baton Blue | Lepidoptera | Mountainous regions of Sinai Peninsula | Pseudophilotes sinaicus |
| Sinaloan Pocket Mouse | Rodentia | Mexico | Chaetodipus baileyi |
| Singapore Roundleaf Bat | Chiroptera | Tropical forests | Hipposideros microphyllus |
| Sipora Pig | Artiodactyla | Tropical forests | Sus siporanus |
| Siporagunung Shrew | Soricomorpha | Indonesia | Crocidura levicula |
| Sishuan Partridge | Galliformes | Southwest China | Arborophila ruficollis |
| Sisy Mouse | Rodentia | Endemic to China | Mus sishengensis |
| Sitatunga | Artiodactyla | Swamps and Marshes of Central and West Africa | Tragelaphus spekii |
| Sitwel's Flying Squirrel | Rodentia | Endemic to Myanmar | Petaurista sitwellorum |
| Sky Island Cottontail | Lagomorpha | Sky Islands of Southwest North America | Sylvilagus nuttallii |
| Sleeper Shark | Chondrichthyes | Marine | Somniosus microcephalus |
| Slender Billed Cuscus | Diprotodontia | Endemic to New Guinea | Phalanger lullulae |
| Slender Gibbon | Primates | Indonesia | Hylobates moloch |
| Slender Loris | Primates | Tropical forests | Loris lydekkerianus |
| Slender Mouse Opossum | Didelphimorphia | Tropical Forests of South America | Marmosops spp. |
| Slender Opossum | Didelphimorphia | Tropical forests | Marmosa murina |
| Slender Skunk | Carnivora | North America | Mephitis longicauda |
| Slender Squirrel | Rodentia | Colombia, Ecuador, Peru | Microsciurus mimulus |
| Slender-horned Gazelle | Artiodactyla | Deserts | Gazella leptoceros |
| Slender-tailed Cloud Rat | Rodentia | Tropical forests | Phloeomys cumingi |
| Slow Loris | Primates | Forests of Southeast Asia | Nycticebus spp. |
| Small Indian Civet | Carnivora | Asia | Viverricula indica |
| Small-eared Shrew | Eulipotyphla | North and Central America | Cryptotis parva |
| Small-eared Zokors | Rodentia | Grasslands and scrublands | Eospalax fontanierii |
| Small-footed Myotis | Chiroptera | North America | Myotis leibii |
| Small-toothed Ferret-badger | Carnivora | East Asia | Melogale moschata |
| Small-toothed Palm Civet | Carnivora | Southeast Asia | Arctogalidia trivirgata |
| Sminthopsis Mouse | Dasyuromorphia | Australia | Sminthopsis spp. |
| Smoky Bat | Chiroptera | Europe and Asia | Nyctalus noctula |
| Smoky Jungle Frog | Anura | South and Central America | Leptodactylus pentadactylus |
| Smooth-coated Otter | Carnivora | Wetland and rivers | Lutrogale perspicillata |
| Snowshoe Hare | Lagomorpha | Boreal and temperate forests | Lepus americanus |
| Snub-nosed Monkey | Primates | China | Rhinopithecus spp. |
| Soala | Artiodactyla | Tropical forests | Pseudoryx nghetinhensis |
| Socorro Lemming Mouse | Rodentia | Mexico | Nearctomys lemmus |
| Sokoke Bushy-tailed Mongoose | Carnivora | Kenya | Bdeogale omnivora |
| Sokotra Horseshoe Bat | Chiroptera | Socotra Island, Yemen | Rhinolophus clivosus |
| Sokotra Mouse | Rodentia | Socotra Island, Yemen | Myomyscus viarius |
| Solenodon | Eulipotyphla | Caribbean islands | Solenodon spp. |
| Solenodonte de Cuba | Eulipotyphla | Cuba | Solenodon cubanus |
| Solenodonte de Hispaniola | Eulipotyphla | Hispaniola | Solenodon paradoxus |
| Sonoran Desert Shrew | Eulipotyphla | Southwestern United States, Mexico | Notiosorex crawfordi |
| Sooty Grunter | Actinopterygii | Rivers and lakes | Hephaestus fuliginosus |
| South African Hedgehog | Erinaceomorpha | Southern Africa | Atelerix frontalis |
| South African Rock Dassie | Hyracoidea | Southern Africa | Procavia capensis |
| South African Springhare | Rodentia | Savannas and grasslands | Pedetes capensis |
| South American Cotton Rat | Rodentia | South America | Sigmodon spp. |
| South American Fur Seal | Carnivora | South America | Arctocephalus australis |
| South American Gray Fox | Carnivora | South America | Lycalopex griseus |
| South American Leaf-eared Mouse | Rodentia | South America | Phyllotis spp. |
| South American Sea Lion | Carnivora | South America | Otaria flavescens |
| South American Water Rat | Rodentia | South America | Nectomys spp. |
| South Andean Huemul | Artiodactyla | South America | Hippocamelus bisulcus |
| South Central American Spiny Mouse | Rodentia | Central America | Neacomys musseri |
| Southern Bandicoot | Peramelemorphia | Australia | Isoodon obesulus |
| Southern Bent-winged Bat | Chiroptera | Caves and mines | Miniopterus schreibersii |
| Southern Bottlenose Whale | Cetacea | Marine | Hyperoodon planifrons |
| Southern Damara Mole-rat | Rodentia | Southern Africa | Cryptomys hottentotus natalensis |
| Southern Elephant Seal | Carnivora | Southern Ocean | Mirounga leonina |
| Southern Marsupial Mole | Notoryctemorphia | Deserts | Notoryctes typhlops |
| Southern Muriqui | Primates | Brazil | Brachyteles arachnoides |
| Southern Philippines Montane Squirrel | Rodentia | Philippines | Sundasciurus mindanensis |
| Southern Right Whale Dolphin | Cetacea | Southern Ocean | Lissodelphis peronii |
| Southern Tamandua | Pilosa | Tropical forests | Tamandua tetradactyla |
| Southern Tree Hyrax | Hyracoidea | Tropical forests | Dendrohyrax arboreus |
| Southern Treeshrew | Scandentia | Southeast Asia | Tupaia minor |
| Southwestern Beardless Bat | Chiroptera | Western North America | Antrozous pallidus |
| Sowerbys Beaked Whale | Cetacea | North Atlantic, North Pacific | Mesoplodon bidens |
| Spectacled Hare-wallaby | Phalangeriformes | Tropical savannas | Lagorchestes conspicillatus |
| Spectacled Langur | Primates | Tropical forests | Trachypithecus obscurus |
| Spectral Bat | Chiroptera | Tropical forests | Vampyrum spectrum |
| Spilogale Skunk | Carnivora | North America | Spilogale spp. |
| Spiny Bandicoot | Peramelemorphia | New Guinea | Echymipera spp. |
| Spiny Pocket Mouse | Rodentia | North America | Chaetodipus spp. |
| Spiny Shrew | Eulipotyphla | Europe and Asia | Sorex araneus |
| Spotted Bat | Chiroptera | North America | Euderma maculatum |
| Spotted Cuscus | Diprotodontia | New Guinea | Spilocuscus maculatus |
| Spotted Saki | Primates | South America | Pithecia pithecia |
| Spotted-tailed Quoll | Dasyuromorphia | Australia, Tasmania | Dasyurus maculatus |
| Squirrel Glider | Diprotodontia | Temperate forests | Petaurus norfolcensis |
| Sri Lankan Mouse Deer | Artiodactyla | Sri Lanka | Moschiola meminna |
| Stanisic's Shrew | Eulipotyphla | Indonesia | Crocidura stanisici |
| Starry Bat | Chiroptera | North America | Lasionycteris noctivagans |
| Steller's Sea Cow | Sirenia | Marine | Hydrodamalis gigas |
| Steller's Sea Lion | Carnivora | Marine | Eumetopias jubatus |
| Striped Dolphin | Cetacea | Marine | Stenella coeruleoalba |
| Sulawesi Bear Cuscus | Diprotodontia | Indonesia | Ailurops ursinus |
| Sulawesi Dwarf Cuscus | Diprotodontia | Indonesia | Strigocuscus celebensis |
| Sulawesi Dwarf Squirrel | Rodentia | Indonesia | Prosciurillus abstrusus |
| Sulawesi Rat | Rodentia | Indonesia | Taeromys spp. |
| Sulawesi Striped Civet | Carnivora | Indonesia | Hemigalus hosei |
| Sumatran Langur | Primates | Indonesia | Presbytis melalophos |
| Sumatran Rhinoceros | Perissodactyla | Tropical forests | Dicerorhinus sumatrensis |
| Sumatran Serow | Artiodactyla | Tropical forests | Capricornis sumatraensis |
| Sumatran Striped Rabbit | Lagomorpha | Indonesia | Nesolagus netscheri |
| Sunda Colugo | Dermoptera | Southeast Asia | Galeopterus variegatus |
| Sunda Pangolin | Pholidota | Southeast Asia | Manis javanica |
| Sundaland Short-tailed Gymnure | Erinaceomorpha | Tropical forests | Hylomys suillus |
| Sundevall's Jird | Rodentia | North Africa, Middle East | Meriones crassus |
| Sundevall's Leaf-nosed Bat | Chiroptera | Africa | Hipposideros caffer |
| Sunga's Shrew | Eulipotyphla | Indonesia | Crocidura sungae |
| Swamp Monkey | Primates | Central Africa | Allenopithecus nigroviridis |
| Swinhoe's Lesser Bamboo Bat | Chiroptera | East Asia | Tylonycteris pachypus |
| Swiss Vole | Rodentia | Italy, Switzerland | Microtus multiplex |