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.
Andean Mountain Cat
Leopardus jacobita
Southern Colocolo
Leopardus pajeros
Ocelot
Leopardus pardalis
Clouded Oncilla
Leopardus pardinoides
Savanna Oncilla
Leopardus tigrinus
Margay
Leopardus wiedii
Sundaic Mountain Long-tailed Giant Rat
Leopoldamys ciliatus
Diwangkara's Long-tailed Giant Rat
Leopoldamys diwangkarai
Edwards's Long-tailed Giant Rat
Leopoldamys edwardsi
Hainan Long-tailed Giant Rat
Leopoldamys hainanensis
Herbert's Long-tailed Giant Rat
Leopoldamys herberti
Millet's Long-tailed Giant Rat
Leopoldamys milleti
Neill's Long-tailed Giant Rat
Leopoldamys neilli
Indomalayan Long-tailed Giant Rat
Leopoldamys sabanus
Mentawai Long-tailed Giant Rat
Leopoldamys siporanus
Antafia Sportive Lemur
Lepilemur aeeclis
Tsiombikibo Sportive Lemur
Lepilemur ahmansoni
Ankarana Sportive Lemur
Lepilemur ankaranensis
Betsileo Sportive Lemur
Lepilemur betsileo
Gray's Sportive Lemur
Lepilemur dorsalis
Milne-Edwards's Sportive Lemur
Lepilemur edwardsi
Andohahela Sportive Lemur
Lepilemur fleuretae
Anjiamangirana Sportive Lemur
Lepilemur grewcocki
Mananara-Nord Sportive Lemur
Lepilemur hollandorum
Zombitse Sportive Lemur
Lepilemur hubbardi
Manombo Sportive Lemur
Lepilemur jamesi
White-footed Sportive Lemur
Lepilemur leucopus
Small-toothed Sportive Lemur
Lepilemur microdon
Daraina Sportive Lemur
Lepilemur milanoii
Weasel Sportive Lemur
Lepilemur mustelinus
Ambodimahabibo Sportive Lemur
Lepilemur otto
Petter's Sportive Lemur
Lepilemur petteri
Bemaraha Sportive Lemur
Lepilemur randrianasoloi
Red-tailed Sportive Lemur
Lepilemur ruficaudatus
Sahamalaza Sportive Lemur
Lepilemur sahamalaza
Masoala Sportive Lemur
Lepilemur scottorum
Seal's Sportive Lemur
Lepilemur seali
Sahafary Sportive Lemur
Lepilemur septentrionalis
Nosy Be Sportive Lemur
Lepilemur tymerlachsoni
Wright's Sportive Lemur
Lepilemur wrighti
Lesser Stick-nest Rat
Leporillus apicalis
Greater Stick-nest Rat
Leporillus conditor
Serval
Leptailurus serval
Arfak Water Rat
Leptomys arfakensis
Elegant Water Rat
Leptomys elegans
Ernst Mayr's Water Rat
Leptomys ernstmayri
Small Water Rat
Leptomys paulus
Fly River Water Rat
Leptomys signatus
Weddell Seal
Leptonychotes weddellii
Southern Long-nosed Bat
Leptonycteris curasoae
Greater Long-nosed Bat
Leptonycteris nivalis
Lesser Long-nosed Bat
Leptonycteris yerbabuenae
Antelope Jackrabbit
Lepus alleni
Tamaulipas Jackrabbit
Lepus altamirae
Snowshoe Hare
Lepus americanus
Arctic Hare
Lepus arcticus
Japanese Hare
Lepus brachyurus
Black-tailed Jackrabbit
Lepus californicus
White-sided Jackrabbit
Lepus callotis
Cape Hare
Lepus capensis