Mammals 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.

African Forest Elephant
Loxodonta cyclotis

Southern Big-eared Mouse
Loxodontomys micropus

Lund's Water Rat
Lundomys molitor

Side-striped Jackal
Lupulella adusta

Black-backed Jackal
Lupulella mesomelas

African Clawless Otter
Lutra capensis

Asian Small-clawed Otter
Lutra cinerea

Congo Clawless Otter
Lutra congica

Eurasian Otter
Lutra lutra

Japanese Otter
Lutra nippon

Smooth-coated Otter
Lutra perspicillata

Hairy-nosed Otter
Lutra sumatrana

Big Lutrine Opossum
Lutreolina crassicaudata
Massoia's Lutrine Opossum
Lutreolina massoia

Culpeo
Lycalopex culpaeus

Darwin's Fox
Lycalopex fulvipes

South American Gray Fox
Lycalopex grisea

Pampas Fox
Lycalopex gymnocerca

Sechuran Fox
Lycalopex sechurae

Hoary Fox
Lycalopex vetula

African Wild Dog
Lycaon pictus

Patagonian Weasel
Lyncodon patagonicus

Canadian Lynx
Lynx canadensis

Eurasian Lynx
Lynx lynx

Iberian Lynx
Lynx pardinus

Bobcat
Lynx rufus

Indian Greater False-vampire
Lyroderma lyra

Eastern Greater False-vampire
Lyroderma sinense

Stump-tailed Macaque
Macaca arctoides

Assamese Macaque
Macaca assamensis

Buton Macaque
Macaca brunnescens

Taiwanese Macaque
Macaca cyclopis

Long-tailed Macaque
Macaca fascicularis

Japanese Macaque
Macaca fuscata

Heck's Macaque
Macaca hecki

Northern Pig-tailed Macaque
Macaca leonina

White-cheeked Macaque
Macaca leucogenys

Moor Macaque
Macaca maura

Rhesus Macaque
Macaca mulatta

Arunachal Macaque
Macaca munzala

Southern Pig-tailed Macaque
Macaca nemestrina

Crested Macaque
Macaca nigra

Gorontalo Macaque
Macaca nigrescens

Booted Macaque
Macaca ochreata

Pagai Macaque
Macaca pagensis

Bonnet Macaque
Macaca radiata
Sela Macaque
Macaca selai

Siberut Macaque
Macaca siberu

Lion-tailed Macaque
Macaca silenus

Toque Macaque
Macaca sinica

Barbary Macaque
Macaca sylvanus

Tibetan Macaque
Macaca thibetana

Tonkean Macaque
Macaca tonkeana

Ghost False-vampire
Macroderma gigas

Sulawesi Palm Civet
Macrogalidia musschenbroekii

Lesser Long-tongued Blossom Bat
Macroglossus minimus

Greater Long-tongued Blossom Bat
Macroglossus sobrinus

Commerson's Roundleaf Bat
Macronycteris commersonii
Madagascar Cryptic Roundleaf Bat
Macronycteris cryptovalorona
Giant Roundleaf Bat
Macronycteris gigas