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.
Black-bellied Pangolin
Phataginus tetradactylus
White-bellied Pangolin
Phataginus tricuspis
Western Heather Vole
Phenacomys intermedius
Eastern Heather Vole
Phenacomys ungava
Anderson's Four-eyed Opossum
Philander andersoni
Common Four-eyed Opossum
Philander canus
Orinoco Four-eyed Opossum
Philander deltae
McIlhenny's Four-eyed Opossum
Philander mcilhennyi
Dark Four-eyed Opossum
Philander melanurus
Black Four-eyed Opossum
Philander nigratus
Gray Four-eyed Opossum
Philander opossum
Pebas Four-eyed Opossum
Philander pebas
Southern Four-eyed Opossum
Philander quica
Northern Four-eyed Opossum
Philander vossi
Maxwell's Duiker
Philantomba maxwellii
Blue Duiker
Philantomba monticola
Walter's Duiker
Philantomba walteri
Rohu's Bat
Philetor brachypterus
Southern Luzon Giant Cloud Rat
Phloeomys cumingi
Northern Luzon Giant Cloud Rat
Phloeomys pallidus
Spotted Seal
Phoca largha
Harbor Seal
Phoca vitulina
New Zealand Sea Lion
Phocarctos hookeri
Spectacled Porpoise
Phocoena dioptrica
Harbor Porpoise
Phocoena phocoena
Vaquita
Phocoena sinus
Burmeister's Porpoise
Phocoena spinipinnis
Dall's Porpoise
Phocoenoides dalli
Desert Hamster
Phodopus roborovskii
Dubious Trumpet-eared Bat
Phoniscus aerosus
Groove-toothed Trumpet-eared Bat
Phoniscus atrox
Peters's Trumpet-eared Bat
Phoniscus jagorii
Golden-tipped Bat
Phoniscus papuensis
Pale-faced Bat
Phylloderma stenops
Golden Atlantic Tree-rat
Phyllomys blainvilii
Brazilian Atlantic Tree-rat
Phyllomys brasiliensis
Central Atlantic Tree-rat
Phyllomys centralis
Drab Atlantic Tree-rat
Phyllomys dasythrix
Kerr's Atlantic Tree-rat
Phyllomys kerri
Pallid Atlantic Tree-rat
Phyllomys lamarum
Lund's Atlantic Tree-rat
Phyllomys lundi
Serra da Mantiqueira Atlantic Tree-rat
Phyllomys mantiqueirensis
Long-furred Atlantic Tree-rat
Phyllomys medius
Black-spined Atlantic Tree-rat
Phyllomys nigrispinus
Patton's Atlantic Tree-rat
Phyllomys pattoni
Southern Atlantic Tree-rat
Phyllomys sulinus
Giant Atlantic Tree-rat
Phyllomys thomasi
Unicolored Tree-rat
Phyllomys unicolor
Jamaican Flower Bat
Phyllonycteris aphylla
Cuban Flower Bat
Phyllonycteris poeyi
Cuban Fig-eating Bat
Phyllops falcatus
Pale Spear-nosed Bat
Phyllostomus discolor
Lesser Spear-nosed Bat
Phyllostomus elongatus
Greater Spear-nosed Bat
Phyllostomus hastatus
Guianan Spear-nosed Bat
Phyllostomus latifolius
Los Alisos Leaf-eared Mouse
Phyllotis alisosiensis
Friendly Leaf-eared Mouse
Phyllotis amicus
Andean Leaf-eared Mouse
Phyllotis andium
Anita's Leaf-eared Mouse
Phyllotis anitae
Bonarian Leaf-eared Mouse
Phyllotis bonariensis