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.
Guianan Spiny-rat
Proechimys hoplomyoides
Kulina Spiny-rat
Proechimys kulinae
Long-tailed Spiny-rat
Proechimys longicaudatus
Minca Spiny-rat
Proechimys mincae
O'Connell's Spiny-rat
Proechimys oconnelli
Patton's Spiny-rat
Proechimys pattoni
Napo Spiny-rat
Proechimys quadruplicatus
Robert's Spiny-rat
Proechimys roberti
Tomes's Spiny-rat
Proechimys semispinosus
Simons's Spiny-rat
Proechimys simonsi
Steere's Spiny-rat
Proechimys steerei
Trinidad Spiny-rat
Proechimys trinitatis
Duke of Bedford's Vole
Proedromys bedfordi
Sardinian Pika
Prolagus sardus
Greater Bamboo Lemur
Prolemur simus
Long-clawed Mole Vole
Prometheomys schaposchnikowi
Big Crested Mastiff Bat
Promops centralis
Davison's Mastiff Bat
Promops davisoni
Brown Mastiff Bat
Promops nasutus
Natal Red Rock Hare
Pronolagus crassicaudatus
Jameson's Red Rock Hare
Pronolagus randensis
Smith's Red Rock Hare
Pronolagus rupestris
Hewitt's Red Rock Hare
Pronolagus saundersiae
Silky Sifaka
Propithecus candidus
Coquerel's Sifaka
Propithecus coquereli
Crowned Sifaka
Propithecus coronatus
Decken's Sifaka
Propithecus deckenii
Diademed Sifaka
Propithecus diadema
Milne-Edwards's Sifaka
Propithecus edwardsi
Perrier's Sifaka
Propithecus perrieri
Tattersall's Sifaka
Propithecus tattersalli
Verreaux's Sifaka
Propithecus verreauxi
Secretive Dwarf Squirrel
Prosciurillus abstrusus
Alston's Squirrel
Prosciurillus alstoni
Whitish Dwarf Squirrel
Prosciurillus leucomus
Celebes Dwarf Squirrel
Prosciurillus murinus
Sangihe Squirrel
Prosciurillus rosenbergii
Mount Topapu Squirrel
Prosciurillus topapuensis
Weber's Dwarf Squirrel
Prosciurillus weberi
Southern Aardwolf
Proteles cristatus
Eastern Aardwolf
Proteles septentrionalis
Papuan Mosaic-tailed Rat
Protochromys fellowsi
Slender-tailed Squirrel
Protoxerus aubinnii
Forest Giant Squirrel
Protoxerus stangeri
Fat Sand Rat
Psammomys obesus
Lesser Sand Rat
Psammomys vexillaris
Sandstone Pseudantechinus
Pseudantechinus bilarni
Fat-tailed Pseudantechinus
Pseudantechinus macdonnellensis
Carpentarian Pseudantechinus
Pseudantechinus mimulus
Ningbing Pseudantechinus
Pseudantechinus ningbing
Woolley's Pseudantechinus
Pseudantechinus woolleyae
Western Ring-tailed Possum
Pseudocheirus occidentalis
Eastern Ring-tailed Possum
Pseudocheirus peregrinus
D'Albertis's Ring-tailed Possum
Pseudochirops albertisii
Green Ring-tailed Possum
Pseudochirops archeri
Plush-coated Ring-tailed Possum
Pseudochirops corinnae
Reclusive Ring-tailed Possum
Pseudochirops coronatus
Coppery Ring-tailed Possum
Pseudochirops cupreus
Rock Ring-tailed Possum
Pseudochirops dahlii
Lowland Ring-tailed Possum
Pseudochirulus canescens