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.
Mongoose Lemur
Eulemur mongoz
Red-bellied Lemur
Eulemur rubriventer
Red-fronted Brown Lemur
Eulemur rufifrons
Rufous Brown Lemur
Eulemur rufus
Sanford's Brown Lemur
Eulemur sanfordi
Steller Sea Lion
Eumetopias jubatus
Black Bonneted Bat
Eumops auripendulus
Common Dwarf Bonneted Bat
Eumops bonariensis
Chimera's Bonneted Bat
Eumops chimaera
Chiribaya's Bonneted Bat
Eumops chiribaya
Big Bonneted Bat
Eumops dabbenei
Delta Bonneted Bat
Eumops delticus
Fierce Bonneted Bat
Eumops ferox
Florida Bonneted Bat
Eumops floridanus
Wagner's Bonneted Bat
Eumops glaucinus
Sanborn's Bonneted Bat
Eumops hansae
Guianan Bonneted Bat
Eumops maurus
Northern Dwarf Bonneted Bat
Eumops nanus
Patagonian Dwarf Bonneted Bat
Eumops patagonicus
Western Bonneted Bat
Eumops perotis
Trumbull's Bonneted Bat
Eumops trumbulli
Underwood's Bonneted Bat
Eumops underwoodi
Wilson's Bonneted Bat
Eumops wilsoni
Patagonian Chinchilla Rat
Euneomys chinchilloides
Salta Chinchilla Rat
Euneomys fossor
Southern Needle-clawed Galago
Euoticus elegantulus
Northern Needle-clawed Galago
Euoticus pallidus
Western Woolly Flying Squirrel
Eupetaurus cinereus
Yunnan Woolly Flying Squirrel
Eupetaurus nivamons
Tibetan Woolly Flying Squirrel
Eupetaurus tibetensis
Six-banded Armadillo
Euphractus sexcinctus
Falanouc
Eupleres goudotii
Darwin's Mole
Euroscaptor darwini
Greater Chinese Mole
Euroscaptor grandis
Kloss's Mole
Euroscaptor klossi
Kuznetsov's Mole
Euroscaptor kuznetsovi
Long-nosed Mole
Euroscaptor longirostris
Malaysian Mole
Euroscaptor malayanus
Himalayan Mole
Euroscaptor micrurus
Ngoc Linh Mole
Euroscaptor ngoclinhensis
Orlov's Mole
Euroscaptor orlovi
Small-toothed Mole
Euroscaptor parvidens
Vietnamese Mole
Euroscaptor subanura
Cerqueira's Rice Rat
Euryoryzomys cerqueirai
Emmons's Rice Rat
Euryoryzomys emmonsae
Buffy-sided Rice Rat
Euryoryzomys lamia
Big-headed Rice Rat
Euryoryzomys legatus
McConnell's Rice Rat
Euryoryzomys macconnelli
Elegant Rice Rat
Euryoryzomys nitidus
Russet Rice Rat
Euryoryzomys russatus
Guiara
Euryzygomatomys spinosus
Siberian Chipmunk
Eutamias sibiricus
Striped Ground Squirrel
Euxerus erythropus
Philippine Pygmy Squirrel
Exilisciurus concinnus
Least Pygmy Squirrel
Exilisciurus exilis
Tufted Pygmy Squirrel
Exilisciurus whiteheadi
Western False Pipistrelle
Falsistrellus mackenziei
Eastern False Pipistrelle
Falsistrellus tasmaniensis
Chinese Mountain Cat
Felis bieti
Domestic Cat
Felis catus