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.
Sao Tome Roundleaf Bat
Macronycteris thomensis
Striped Roundleaf Bat
Macronycteris vittata
Long-legged Bat
Macrophyllum macrophyllum
Western Gray Kangaroo
Macropus fuliginosus
Eastern Gray Kangaroo
Macropus giganteus
Namib Round-eared Sengi
Macroscelides flavicaudatus
Etendeka Round-eared Sengi
Macroscelides micus
Karoo Round-eared Sengi
Macroscelides proboscideus
Bastard's Big-footed Mouse
Macrotarsomys bastardi
Ankarafantsika Big-footed Mouse
Macrotarsomys ingens
Petter's Big-footed Mouse
Macrotarsomys petteri
Greater Bilby
Macrotis lagotis
Lesser Bilby
Macrotis leucura
Californian Leaf-nosed Bat
Macrotus californicus
Waterhouse's Leaf-nosed Bat
Macrotus waterhousii
Lesser Small-toothed Rat
Macruromys elegans
Greater Small-toothed Rat
Macruromys major
Naivasha Dik-dik
Madoqua cavendishi
Damara Dik-dik
Madoqua damarensis
Guenther's Dik-dik
Madoqua guentheri
Kirk's Dik-dik
Madoqua kirkii
Silver Dik-dik
Madoqua piacentinii
Salt's Dik-dik
Madoqua saltiana
Ugogo Dik-dik
Madoqua thomasi
White-tailed Wood Rat
Madromys blanfordi
Red-nosed Armored Tree-rat
Makalata didelphoides
Long-tailed Armored Tree-rat
Makalata macrura
Cansdale's Swamp Rat
Malacomys cansdalei
Edwards's Swamp Rat
Malacomys edwardsi
Common Swamp Rat
Malacomys longipes
Long-eared Desert Mouse
Malacothrix typica
De Vis's Woolly Rat
Mallomys aroaensis
Alpine Woolly Rat
Mallomys gunung
Subalpine Woolly Rat
Mallomys istapantap
Rothschild's Woolly Rat
Mallomys rothschildi
Highland Mosaic-tailed Rat
Mammelomys lanosus
Lowland Mosaic-tailed Rat
Mammelomys rattoides
Drill
Mandrillus leucophaeus
Mandrill
Mandrillus sphinx
Indo-Burmese Pangolin
Manis aurita
Thick-tailed Pangolin
Manis crassicaudata
Palawan Pangolin
Manis culionensis
Sunda Pangolin
Manis javanica
Short-tailed Pangolin
Manis pentadactyla
Beccari's Margareta Rat
Margaretamys beccarii
Christina's Margareta Rat
Margaretamys christinae
Elegant Margareta Rat
Margaretamys elegans
Lesser Margareta Rat
Margaretamys parvus
Adler's Woolly Mouse Opossum
Marmosa adleri
Alston's Woolly Mouse Opossum
Marmosa alstoni
Anderson's Mouse Opossum
Marmosa andersoni
Chachapoya Mouse Opossum
Marmosa chachapoya
White-bellied Woolly Mouse Opossum
Marmosa constantiae
Northeastern Woolly Mouse Opossum
Marmosa demerarae
Northwestern Woolly Mouse Opossum
Marmosa germana
Panama Mouse Opossum
Marmosa isthmica
Jansa's Woolly Mouse Opossum
Marmosa jansae
Rufous Mouse Opossum
Marmosa lepida
Western Amazonian Mouse Opossum
Marmosa macrotarsus
Mexican Mouse Opossum
Marmosa mexicana