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.
Sanborn's Big-eared Bat
Micronycteris sanborni
Schmidts' Big-eared Bat
Micronycteris schmidtorum
Simmons's Big-eared Bat
Micronycteris simmonsae
Northern Big-eared Bat
Micronycteris tresamici
Yates's Big-eared Bat
Micronycteris yatesi
Arfak Pygmy Bandicoot
Microperoryctes aplini
Long-tailed Bandicoot
Microperoryctes longicauda
Mouse Bandicoot
Microperoryctes murinus
Striped Bandicoot
Microperoryctes ornatus
Papuan Bandicoot
Microperoryctes papuensis
Nimba Otter-shrew
Micropotamogale lamottei
Rwenzori Otter-shrew
Micropotamogale ruwenzorii
Highland Small Rice Rat
Microryzomys altissimus
Forest Small Rice Rat
Microryzomys minutus
Central American Dwarf Squirrel
Microsciurus alfari
Panamanian Dwarf Squirrel
Microsciurus boquetensis
Amazon Dwarf Squirrel
Microsciurus flaviventer
Isthmian Dwarf Squirrel
Microsciurus isthmius
Western Dwarf Squirrel
Microsciurus mimulus
White-eared Dwarf Squirrel
Microsciurus otinus
Sabanilla Dwarf Squirrel
Microsciurus sabanillae
Santander Dwarf Squirrel
Microsciurus santanderensis
Choco Dwarf Squirrel
Microsciurus similis
Simons's Dwarf Squirrel
Microsciurus simonsi
Singing Vole
Microtus abbreviatus
Afghan Vole
Microtus afghanus
Short-tailed Field Vole
Microtus agrestis
Anatolian Vole
Microtus anatolicus
Common Vole
Microtus arvalis
Calabria Pine Vole
Microtus brachycercus
Bucharian Vole
Microtus bucharensis
Cabrera's Vole
Microtus cabrerae
California Vole
Microtus californicus
Gray-tailed Vole
Microtus canicaudus
Rock Vole
Microtus chrotorrhinus
Caucasian Pine Vole
Microtus daghestanicus
Dogramaci's Vole
Microtus dogramacii
Western Meadow Vole
Microtus drummondii
Florida Salt Marsh Vole
Microtus dukecampbelli
Mediterranean Pine Vole
Microtus duodecimcostatus
Balkan Pine Vole
Microtus felteni
Anatolian Pine Vole
Microtus fingeri
Guatemalan Vole
Microtus guatemalensis
Levant Vole
Microtus guentheri
Harting's Vole
Microtus hartingi
Tian Shan Vole
Microtus ilaeus
Iranian Vole
Microtus irani
Kerman Vole
Microtus kermanensis
Mediterranean Field Vole
Microtus lavernedii
Liechtenstein's Pine Vole
Microtus liechtensteini
Long-tailed Vole
Microtus longicaudus
Lusitanian Pine Vole
Microtus lusitanicus
Major's Pine Vole
Microtus majori
Mexican Vole
Microtus mexicanus
Mogollon Vole
Microtus mogollonensis
Montane Vole
Microtus montanus
Alpine Pine Vole
Microtus multiplex
Cyrenaica Vole
Microtus mustersi
Caspian Gray Vole
Microtus mystacinus
Sicilian Pine Vole
Microtus nebrodensis