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.
Sao Paulo Grass Mouse
Akodon sanctipaulensis
Cochabamba Grass Mouse
Akodon siberiae
Gray-bellied Grass Mouse
Akodon simulator
Spegazzini's Grass Mouse
Akodon spegazzinii
Puno Grass Mouse
Akodon subfuscus
Silent Grass Mouse
Akodon surdus
Forest Grass Mouse
Akodon sylvanus
Toba Grass Mouse
Akodon toba
Cloud Forest Grass Mouse
Akodon torques
Variable Grass Mouse
Akodon varius
Hartebeest
Alcelaphus buselaphus
Moose
Alces alces
Alpine Vole
Alexandromys alpinus
Evoron Vole
Alexandromys evoronensis
Reed Vole
Alexandromys fortis
Taiwan Vole
Alexandromys kikuchii
Lacustrine Vole
Alexandromys limnophilus
Maximowicz's Vole
Alexandromys maximowiczii
Middendorff's Vole
Alexandromys middendorffii
Mongolian Vole
Alexandromys mongolicus
Japanese Grass Vole
Alexandromys montebelli
Muya Valley Vole
Alexandromys mujanensis
Root Vole
Alexandromys oeconomus
Sakhalin Vole
Alexandromys sachalinensis
Shantar Vole
Alexandromys shantaricus
Japanese Pipistrelle
Alionoctula abramus
Forest Pipistrelle
Alionoctula adamsi
New Guinea Pipistrelle
Alionoctula angulata
Babu's Pipistrelle
Alionoctula babu
Kelaart's Pipistrelle
Alionoctula ceylonica
Greater Papuan Pipistrelle
Alionoctula collina
Indian Pipistrelle
Alionoctula coromandra
Dhofar Pipistrelle
Alionoctula dhofarensis
Endo's Pipistrelle
Alionoctula endoi
Javan Pipistrelle
Alionoctula javanica
Minahassa Pipistrelle
Alionoctula minahassae
Christmas Island Pipistrelle
Alionoctula murrayi
Lesser Papuan Pipistrelle
Alionoctula papuana
Mount Popa Pipistrelle
Alionoctula paterculus
Narrow-winged Pipistrelle
Alionoctula stenoptera
Sturdee's Pipistrelle
Alionoctula sturdeei
Least Pipistrelle
Alionoctula tenuis
Watts's Pipistrelle
Alionoctula wattsi
Northern Pipistrelle
Alionoctula westralis
Mindanao Pygmy Fruit Bat
Alionycteris paucidentata
Great Jerboa
Allactaga major
Severtzov's Jerboa
Allactaga severtzovi
Bobrinski's Jerboa
Allactodipus bobrinskii
Allen's Swamp Monkey
Allenopithecus nigroviridis
Hairy-eared Dwarf Lemur
Allocebus trichotis
L'Hoest's Monkey
Allochrocebus lhoesti
Preuss's Monkey
Allochrocebus preussi
Sun-tailed Monkey
Allochrocebus solatus
Mongolian Hamster
Allocricetulus curtatus
Eversmann's Hamster
Allocricetulus eversmanni
Ursine Red Howler
Alouatta arctoidea
Eastern Red-handed Howler
Alouatta belzebul
Black-and-gold Howler
Alouatta caraya
Spix's Red-handed Howler
Alouatta discolor
Brown Howler
Alouatta guariba