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.
Russet Hairy-tailed Rat
Batomys russatus
Mindanao Hairy-tailed Rat
Batomys salomonseni
Mount Isarog Hairy-tailed Rat
Batomys uragon
Van Gelder's Bat
Bauerus dubiaquercus
Bushy-tailed Mongoose
Bdeogale crassicauda
Jackson's Mongoose
Bdeogale jacksoni
Black-footed Mongoose
Bdeogale nigripes
Sokoke Mongoose
Bdeogale omnivora
Hinde's Long-tailed Pouched Rat
Beamys hindei
Greater Long-tailed Pouched Rat
Beamys major
Hirola
Beatragus hunteri
Hairy-footed Flying Squirrel
Belomys pearsonii
Arnoux's Beaked Whale
Berardius arnuxii
Baird's Beaked Whale
Berardius bairdii
Least Beaked Whale
Berardius minimus
Berdmore's White-toothed Rat
Berylmys berdmorei
Bowers's White-toothed Rat
Berylmys bowersii
West Chinese White-toothed Rat
Berylmys latouchei
Mackenzie's White-toothed Rat
Berylmys mackenziei
Manipur White-toothed Rat
Berylmys manipulus
Desert Bettong
Bettongia anhydra
Eastern Bettong
Bettongia gaimardi
Little Bettong
Bettongia haoucharae
Burrowing Bettong
Bettongia lesueur
Woylie
Bettongia ogilbyi
Brush-tailed Bettong
Bettongia penicillata
Nullarbor Dwarf Bettong
Bettongia pusilla
Northern Bettong
Bettongia tropica
Chacoan Pink-lipped Mouse
Bibimys chacoensis
Lagoa Santa Pink-lipped Mouse
Bibimys labiosus
Torres's Pink-lipped Mouse
Bibimys torresi
Gray Brocket
Bisbalus citus
Namdapha Flying Squirrel
Biswamoyopterus biswasi
Mount Gaoligong Flying Squirrel
Biswamoyopterus gaoligongensis
Laotian Flying Squirrel
Biswamoyopterus laoensis
Northern Short-tailed Shrew
Blarina brevicauda
Southern Short-tailed Shrew
Blarina carolinensis
Elliot's Short-tailed Shrew
Blarina hylophaga
Everglades Short-tailed Shrew
Blarina peninsulae
Sherman's Short-tailed Shrew
Blarina shermani
Sichuan Short-tailed Shrew
Blarinella quadraticauda
Burmese Short-tailed Shrew
Blarinella wardi
Atlantic Forest Burrowing Mouse
Blarinomys breviceps
Marsh Deer
Blastocerus dichotomus
Manado Fruit Bat
Boneia bidens
Oriente Cave Rat
Boromys offella
Torre's Cave Rat
Boromys torrei
American Bison
Bos bison
Wisent
Bos bonasus
Gayal
Bos frontalis
Gaur
Bos gaurus
Domestic Yak
Bos grunniens
Banteng
Bos javanicus
Wild Yak
Bos mutus
Aurochs
Bos primigenius
Kouprey
Bos sauveli
Domestic Cattle
Bos taurus
Nilgai
Boselaphus tragocamelus
Przewalski's Jird
Brachiones przewalskii
Eastern Antillean Fruit-eating Bat
Brachyphylla cavernarum