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.
Mozambique Thicket Rat
Grammomys cometes
South African Thicket Rat
Grammomys dolichurus
Albertine Rift Thicket Rat
Grammomys dryas
East African Thicket Rat
Grammomys ibeanus
Macmillan's Thicket Rat
Grammomys macmillani
Ethiopian Thicket Rat
Grammomys polionops
Woodland Thicket Rat
Grammomys surdaster
Risso's Dolphin
Grampus griseus
Chaco Pericote
Graomys chacoensis
Pale Pericote
Graomys domorum
Otro Cerro Pericote
Graomys edithae
Common Pericote
Graomys griseoflavus
Angolan African Dormouse
Graphiurus angolensis
Christy's African Dormouse
Graphiurus christyi
Thick-tailed African Dormouse
Graphiurus crassicaudatus
Johnston's African Dormouse
Graphiurus johnstoni
Kellen's African Dormouse
Graphiurus kelleni
Lorraine's African Dormouse
Graphiurus lorraineus
Noack's African Dormouse
Graphiurus microtis
Monard's African Dormouse
Graphiurus monardi
Forest African Dormouse
Graphiurus murinus
Nagtglas's African Dormouse
Graphiurus nagtglasii
Spectacled African Dormouse
Graphiurus ocularis
Flat-headed African Dormouse
Graphiurus platyops
Rupicolous African Dormouse
Graphiurus rupicola
Short-eared African Dormouse
Graphiurus surdus
Walter Verheyen's African Dormouse
Graphiurus walterverheyeni
Wolverine
Gulo gulo
Fossorial Giant Rat
Gyldenstolpia fronto
Cerrado Giant Rat
Gyldenstolpia planaltensis
Leadbeater's Possum
Gymnobelideus leadbeateri
Sleek-furred Ground Rat
Gymnuromys roberti
Chinanteco Deermouse
Habromys chinanteco
Delicate Deermouse
Habromys delicatulus
Ixtlán Deermouse
Habromys ixtlani
Zempoaltepec Deermouse
Habromys lepturus
Crested-tailed Deermouse
Habromys lophurus
Schmidly's Deermouse
Habromys schmidlyi
Xico Deermouse
Habromys simulatus
Hume's Hadromys
Hadromys humei
Yunnan Hadromys
Hadromys yunnanensis
Margaret's Ranee Mouse
Haeromys margarettae
Lowland Sulawesi Ranee Mouse
Haeromys minahassae
Sundaic Ranee Mouse
Haeromys pusillus
Gray Seal
Halichoerus grypus
Spiny Boki Mekot Rat
Halmaheramys bokimekot
Wallace's Large Spiny Rat
Halmaheramys wallacei
Colombian Western Andes Cloud Forest Mouse
Handleyomys fuscatus
Colombian Central Andes Cloud Forest Mouse
Handleyomys intectus
Lac Alaotra Bamboo Lemur
Hapalemur alaotrensis
Golden Bamboo Lemur
Hapalemur aureus
Gray Bamboo Lemur
Hapalemur griseus
Southern Bamboo Lemur
Hapalemur meridionalis
Northern Bamboo Lemur
Hapalemur occidentalis
Lesser Marmoset Rat
Hapalomys delacouri
Greater Marmoset Rat
Hapalomys longicaudatus
Suntsov's Marmoset Rat
Hapalomys suntsovi
Fischer's Pygmy Fruit Bat
Haplonycteris fischeri
Hairy-winged Bat
Harpiocephalus harpia
Gray Tube-nosed Bat
Harpiola grisea