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.
Western Antillean Fruit-eating Bat
Brachyphylla nana
White-tailed Tree Rat
Brachytarsomys albicauda
Hairy-tailed Tree Rat
Brachytarsomys villosus
Southern Muriqui
Brachyteles arachnoides
Northern Muriqui
Brachyteles hypoxanthus
Small Short-tailed Rat
Brachyuromys betsileoensis
Large Short-tailed Rat
Brachyuromys ramirohitra
Southern Maned Three-toed Sloth
Bradypus crinitus
Pygmy Three-toed Sloth
Bradypus pygmaeus
Northern Maned Three-toed Sloth
Bradypus torquatus
Pale-throated Three-toed Sloth
Bradypus tridactylus
Brown-throated Three-toed Sloth
Bradypus variegatus
Southern Mole Vole
Bramus fuscocapillus
Transcaucasian Mole Vole
Bramus lutescens
White-toothed Mouse
Brassomys albidens
Short-foramen Birch Mouse
Breviforamen shannanense
Haitian Edible Rat
Brotomys contractus
Hispaniolan Edible Rat
Brotomys voratus
Gray-bellied Brucie
Brucepattersonius griserufescens
Ihering's Brucie
Brucepattersonius iheringi
Nebulous Brucie
Brucepattersonius nebulosus
Short-tailed Brucie
Brucepattersonius soricinus
Asian Wild Buffalo
Bubalus arnee
Water Buffalo
Bubalus bubalis
Lowland Anoa
Bubalus depressicornis
Tamaraw
Bubalus mindorensis
Mountain Anoa
Bubalus quarlesi
Himalayan Takin
Budorcas taxicolor
Chinese Takin
Budorcas tibetana
Mindanao Forest Rat
Bullimus bagobus
Carleton's Forest Rat
Bullimus carletoni
Camiguin Forest Rat
Bullimus gamay
Luzon Forest Rat
Bullimus luzonicus
Riverine Rabbit
Bunolagus monticularis
Andrews's Hill Rat
Bunomys andrewsi
Common Hill Rat
Bunomys chrysocomus
Lompobatang Hill Rat
Bunomys coelestis
Karoko Hill Rat
Bunomys karokophilus
Montane Hill Rat
Bunomys penitus
Tambusisi Hill Rat
Bunomys prolatus
Tana Toraja Hill Rat
Bunomys torajae
Mountain Pygmy Possum
Burramys parvus
Northern Naked-tailed Armadillo
Cabassous centralis
Chacoan Naked-tailed Armadillo
Cabassous chacoensis
Cerrado Naked-tailed Armadillo
Cabassous squamicaudis
Greater Naked-tailed Armadillo
Cabassous tatouay
Amazon Naked-tailed Armadillo
Cabassous unicinctus
Equatorial Dog-faced Bat
Cabreramops aequatorianus
Kanamari White Uacari
Cacajao amuna
Araçá Uacari
Cacajao ayresi
White Bald Uacari
Cacajao calvus
Neblina Uacari
Cacajao hosomi
Golden-brown Uacari
Cacajao melanocephalus
Novaes's Bald Uacari
Cacajao novaesi
Red Bald Uacari
Cacajao rubicundus
Ucayali Bald Uacari
Cacajao ucayalii
Gray-bellied Shrew-opossum
Caenolestes caniventer
Condor Shrew-opossum
Caenolestes condorensis
Blackish Shrew-opossum
Caenolestes convelatus
Dusky Shrew-opossum
Caenolestes fuliginosus