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.
Khartoum Gerbil
Gerbillus stigmonyx
Sand Gerbil
Gerbillus syrticus
Tarabul Gerbil
Gerbillus tarabuli
Vivacious Gerbil
Gerbillus vivax
Waters's Gerbil
Gerbillus watersi
Northern Giraffe
Giraffa camelopardalis
Southern Giraffe
Giraffa giraffa
Reticulated Giraffe
Giraffa reticulata
Maasai Giraffe
Giraffa tippelskirchi
Humboldt's Flying Squirrel
Glaucomys oregonensis
Northern Flying Squirrel
Glaucomys sabrinus
Southern Flying Squirrel
Glaucomys volans
Striped Butterfly Bat
Glauconycteris alboguttata
Common Butterfly Bat
Glauconycteris argentata
Blackish Butterfly Bat
Glauconycteris atra
Beatrix's Butterfly Bat
Glauconycteris beatrix
Curry's Butterfly Bat
Glauconycteris curryae
Bibundi Butterfly Bat
Glauconycteris egeria
Glen's Butterfly Bat
Glauconycteris gleni
Spotted Butterfly Bat
Glauconycteris humeralis
Kenyan Butterfly Bat
Glauconycteris kenyacola
Machado's Butterfly Bat
Glauconycteris machadoi
Abo Butterfly Bat
Glauconycteris poensis
Pied Butterfly Bat
Glauconycteris superba
Variegated Butterfly Bat
Glauconycteris variegata
Bushy-tailed Opossum
Glironia venusta
Japanese Dormouse
Glirulus japonicus
European Fat Dormouse
Glis glis
Iranian Fat Dormouse
Glis persicus
Dark Thick-thumbed Bat
Glischropus aquilus
Indochinese Thick-thumbed Bat
Glischropus bucephalus
Javan Thick-thumbed Bat
Glischropus javanus
Meghalaya Thick-thumbed Bat
Glischropus meghalayanus
Common Thick-thumbed Bat
Glischropus tylopus
Short-finned Pilot Whale
Globicephala macrorhynchus
Long-finned Pilot Whale
Globicephala melas
Jamaican Long-tongued Bat
Glossophaga antillarum
Baker's Long-tongued Bat
Glossophaga bakeri
Commissaris's Long-tongued Bat
Glossophaga commissarisi
Gray's Long-tongued Bat
Glossophaga leachii
Miller's Long-tongued Bat
Glossophaga longirostris
Western Long-tongued Bat
Glossophaga morenoi
Merriam's Long-tongued Bat
Glossophaga mutica
Pallas's Long-tongued Bat
Glossophaga soricina
Ecuadorian Long-tongued Bat
Glossophaga valens
Behn's Big-eared Bat
Glyphonycteris behnii
Davies's Big-eared Bat
Glyphonycteris daviesi
Tricolored Big-eared Bat
Glyphonycteris sylvestris
Sculptor Squirrel
Glyphotes simus
Indian Bush Rat
Golunda ellioti
Eastern Gorilla
Gorilla beringei
Western Gorilla
Gorilla gorilla
Sulawesi Slender Root Rat
Gracilimus radix
Aceramarca Opossum
Gracilinanus aceramarcae
Agile Opossum
Gracilinanus agilis
Wood Sprite Opossum
Gracilinanus dryas
Emilie's Opossum
Gracilinanus emiliae
Northern Gracile Opossum
Gracilinanus marica
Brazilian Gracile Opossum
Gracilinanus microtarsus
Peruvian Opossum
Gracilinanus peruanus