Mammals 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.

Chacoan Mara
Dolichotis salinicola

Pousargues's Mongoose
Dologale dybowskii

Beira
Dorcatragus megalotis
Black Forest Wallaby
Dorcopsis atrata

White-striped Forest Wallaby
Dorcopsis hageni

Gray Forest Wallaby
Dorcopsis luctuosa

Brown Forest Wallaby
Dorcopsis muelleri

Macleay's Forest Wallaby
Dorcopsulus macleayi

Small Forest Wallaby
Dorcopsulus vanheurni
Greater Roundleaf Bat
Doryrhina camerunensis
Cyclops Roundleaf Bat
Doryrhina cyclops

Red-throated Squirrel
Dremomys gularis

Orange-bellied Himalayan Squirrel
Dremomys lokriah

Chinese Red-cheeked Squirrel
Dremomys ornatus

Perny's Long-nosed Squirrel
Dremomys pernyi

Red-hipped Squirrel
Dremomys pyrrhomerus

Asian Red-cheeked Squirrel
Dremomys rufigenis
Pancho's Monito del Monte
Dromiciops bozinovici

Southern Monito del Monte
Dromiciops gliroides
Capixaba Nectar-feeding Bat
Dryadonycteris capixaba

White-throated Montane Forest Rat
Drymoreomys albimaculatus
East Anatolian Forest Dormouse
Dryomys anatolicus

Woolly Forest Dormouse
Dryomys laniger
Niethammer's Forest Dormouse
Dryomys niethammeri

Eurasian Forest Dormouse
Dryomys nitedula

Dugong
Dugong dugon

Warrah
Dusicyon australis
Brooks's Dayak Fruit Bat
Dyacopterus brooksi
Philippine Large-headed Fruit Bat
Dyacopterus rickarti
Common Dayak Fruit Bat
Dyacopterus spadiceus

True's Shrew Mole
Dymecodon pilirostris
White-faced Tree-rat
Echimys chrysurus
Dark Tree-rat
Echimys saturnus
Vieira's Tree-rat
Echimys vieirai

Lesser Hedgehog Tenrec
Echinops telfairi

Moonrat
Echinosorex gymnura

Central Sulawesi Spiny Rat
Echiothrix centrosa
Northern Sulawesi Spiny Rat
Echiothrix leucura
Clara's Spiny Bandicoot
Echymipera clara
David's Spiny Bandicoot
Echymipera davidi
Menzies's Spiny Bandicoot
Echymipera echinista

Common Spiny Bandicoot
Echymipera kalubu
Long-nosed Spiny Bandicoot
Echymipera rufescens

Honduran White Bat
Ectophylla alba

Madagascan Straw-colored Fruit Bat
Eidolon dupreanum

African Straw-colored Fruit Bat
Eidolon helvum

Tayra
Eira barbara

Tufted Deer
Elaphodus cephalophus

Pere David's Deer
Elaphurus davidianus

Short-snouted Sengi
Elephantulus brachyrhynchus

Cape Rock Sengi
Elephantulus edwardii
Dusky-footed Sengi
Elephantulus fuscipes
Dusky Sengi
Elephantulus fuscus
Bushveld Sengi
Elephantulus intufi

Eastern Rock Sengi
Elephantulus myurus

Karoo Rock Sengi
Elephantulus pilicaudus

Western Rock Sengi
Elephantulus rupestris

Asian Elephant
Elephas maximus
Bolson Gerbil Mouse
Eligmodontia bolsonensis
Dune Gerbil Mouse
Eligmodontia dunaris