Mammals of the WorldMammals of the World: A Photo Database of Every Mammal Species
Mammals are far more diverse than most people realize. Scientists currently recognize roughly 6,871 living species, grouped into about 27 orders and 167 families — from bats (Chiroptera) and rodents (Rodentia), the two largest orders by far, to small, specialized groups like pangolins (Pholidota) and aardvarks (Tubulidentata). Each family shares a distinct evolutionary history, from whales and dolphins (Cetacea) to primates, carnivores, and marsupials, and new species are still being described every year.
This site exists to build a free, open, photo-referenced database of that diversity. We're using it as the reference library for a mammal identification field guide app — the more species that have verified photos attached, the better that app can recognize mammals from a photo in the field. Browse the full species list below, search by common name, scientific name, order, family, or genus, and if you have a photo of a mammal you've encountered, upload it to help fill in the gaps.
African Yellow Bat
Scotophilus dinganii
Ejeta's Yellow Bat
Scotophilus ejetai
Greater Asian Yellow Bat
Scotophilus heathii
Lesser Asian Yellow Bat
Scotophilus kuhlii
White-bellied Yellow Bat
Scotophilus leucogaster
Livingstone's Yellow Bat
Scotophilus livingstonii
Marovaza Yellow Bat
Scotophilus marovaza
Schreber's Yellow Bat
Scotophilus nigrita
Western Greenish Yellow Bat
Scotophilus nigritellus
Robbins's Yellow Bat
Scotophilus nucella
Nut-colored Yellow Bat
Scotophilus nux
Robust Yellow Bat
Scotophilus robustus
Malagasy Yellow Bat
Scotophilus tandrefana
Trujillo's Yellow Bat
Scotophilus trujilloi
Eastern Greenish Yellow Bat
Scotophilus viridis
Inland Broad-nosed Bat
Scotorepens balstoni
Little Broad-nosed Bat
Scotorepens greyii
Eastern Broad-nosed Bat
Scotorepens orion
Northern Broad-nosed Bat
Scotorepens sanborni
Dormer's Bat
Scotozous dormeri
Armored Hero Shrew
Scutisorex somereni
Thor's Hero Shrew
Scutisorex thori
Bushy-tailed Jird
Sekeetamys calurus
Desert Dormouse
Selevinia betpakdalaensis
Chamba Sacred Langur
Semnopithecus ajax
Bengal Sacred Langur
Semnopithecus entellus
Terai Sacred Langur
Semnopithecus hector
Malabar Sacred Langur
Semnopithecus hypoleucos
Nilgiri Langur
Semnopithecus johnii
Tufted Gray Langur
Semnopithecus priam
Nepal Sacred Langur
Semnopithecus schistaceus
Purple-faced Langur
Semnopithecus vetulus
Dwarf Serengeti Mouse
Serengetimys pernanus
Greater Hedgehog Tenrec
Setifer setosus
Hairy-nosed Free-tailed Bat
Setirostris eleryi
Quokka
Setonix brachyurus
Armenian Birch Mouse
Sicista armenica
Northern Birch Mouse
Sicista betulina
Short-tailed Birch Mouse
Sicista brevicauda
Caucasian Birch Mouse
Sicista caucasica
Long-tailed Birch Mouse
Sicista caudata
Tsimlyansk Birch Mouse
Sicista cimlanica
Chinese Birch Mouse
Sicista concolor
Kazbeg Birch Mouse
Sicista kazbegica
Kluchor Birch Mouse
Sicista kluchorica
Kashmir Birch Mouse
Sicista leathemi
Nordmann's Birch Mouse
Sicista loriger
Meigu Birch Mouse
Sicista meiguites
Altai Birch Mouse
Sicista napaea
Gray Birch Mouse
Sicista pseudonapaea
Severtzov's Birch Mouse
Sicista severtzovi
Strand's Birch Mouse
Sicista strandi
Southern Birch Mouse
Sicista subtilis
Talgar Birch Mouse
Sicista talgarica
Terskey Birch Mouse
Sicista terskeica
Tian Shan Birch Mouse
Sicista tianschanica
Hungarian Birch Mouse
Sicista trizona
Sichuan Birch Mouse
Sicista weigoldi
Zhetysu Birch Mouse
Sicista zhetysuica
Allen's Cotton Rat
Sigmodon alleni