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.
Travancore Flying Squirrel
Petinomys fuscocapillus
Whiskered Flying Squirrel
Petinomys genibarbis
Hagen's Flying Squirrel
Petinomys hageni
Siberut Flying Squirrel
Petinomys lugens
Mindanao Flying Squirrel
Petinomys mindanensis
Temminck's Flying Squirrel
Petinomys setosus
Vordermann's Flying Squirrel
Petinomys vordermanni
Four-toed Sengi
Petrodromus tetradactylus
Allied Rock Wallaby
Petrogale assimilis
Short-eared Rock Wallaby
Petrogale brachyotis
Monjon
Petrogale burbidgei
Cape York Rock Wallaby
Petrogale coenensis
Nabarlek
Petrogale concinna
Godman's Rock Wallaby
Petrogale godmani
Herbert's Rock Wallaby
Petrogale herberti
Unadorned Rock Wallaby
Petrogale inornata
Black-footed Rock Wallaby
Petrogale lateralis
Mareeba Rock Wallaby
Petrogale mareeba
Brush-tailed Rock Wallaby
Petrogale penicillata
Proserpine Rock Wallaby
Petrogale persephone
Purple-necked Rock Wallaby
Petrogale purpureicollis
Rothschild's Rock Wallaby
Petrogale rothschildi
Sharman's Rock Wallaby
Petrogale sharmani
Wilkins's Rock Wallaby
Petrogale wilkinsi
Yellow-footed Rock Wallaby
Petrogale xanthopus
Noki
Petromus typicus
Barbour's Pygmy Rock Mouse
Petromyscus barbouri
Common Pygmy Rock Mouse
Petromyscus collinus
Short-eared Pygmy Rock Mouse
Petromyscus monticularis
Shortridge's Pygmy Rock Mouse
Petromyscus shortridgei
North African Sengi
Petrosaltator rozeti
Desert Warthog
Phacochoerus aethiopicus
Common Warthog
Phacochoerus africanus
Rio de Janeiro Arboreal Rat
Phaenomys ferrugineus
Gebe Cuscus
Phalanger alexandrae
New Britain Cuscus
Phalanger breviceps
Mountain Cuscus
Phalanger carmelitae
Ground Cuscus
Phalanger gymnotis
Eastern Common Cuscus
Phalanger intercastellanus
Woodlark Cuscus
Phalanger lullulae
Blue-eyed Cuscus
Phalanger matabiru
Telefomin Cuscus
Phalanger matanim
Southern Common Cuscus
Phalanger mimicus
Northern Common Cuscus
Phalanger orientalis
Moluccan Cuscus
Phalanger ornatus
Peleng Cuscus
Phalanger pelengensis
Obi Cuscus
Phalanger rothschildi
Silky Cuscus
Phalanger sericeus
Stein's Cuscus
Phalanger vestitus
Montagne d'Ambre Fork-marked Lemur
Phaner electromontis
Masoala Fork-marked Lemur
Phaner furcifer
Pale Fork-marked Lemur
Phaner pallescens
Sambirano Fork-marked Lemur
Phaner parienti
New Guinea Big-eared Bat
Pharotis imogene
Red-tailed Phascogale
Phascogale calurus
Northern Brush-tailed Phascogale
Phascogale pirata
Common Brush-tailed Phascogale
Phascogale tapoatafa
Koala
Phascolarctos cinereus
Red-bellied Phascogale
Phascolosorex doriae
Narrow-striped Dasyure
Phascolosorex dorsalis