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.
Southern Hairy-nosed Wombat
Lasiorhinus latifrons
Arequipa Red Bat
Lasiurus arequipae
Greater Red Bat
Lasiurus atratus
Southern Red Bat
Lasiurus blossevillii
Eastern Red Bat
Lasiurus borealis
Tacarcunan Bat
Lasiurus castaneus
Northern Hoary Bat
Lasiurus cinereus
Jamaican Red Bat
Lasiurus degelidus
Hairy-tailed Bat
Lasiurus ebenus
Southern Yellow Bat
Lasiurus ega
Big Red Bat
Lasiurus egregius
Desert Red Bat
Lasiurus frantzii
Cuban Yellow Bat
Lasiurus insularis
Northern Yellow Bat
Lasiurus intermedius
Minor Red Bat
Lasiurus minor
Pfeiffer's Red Bat
Lasiurus pfeifferi
Seminole Bat
Lasiurus seminolus
Hawaiian Hoary Bat
Lasiurus semotus
Cinnamon Red Bat
Lasiurus varius
Southern Hoary Bat
Lasiurus villosissimus
Western Yellow Bat
Lasiurus xanthinus
Salim Ali's Fruit Bat
Latidens salimalii
Yellow-winged False-vampire
Lavia frons
Central Short-tailed Mouse
Leggadina forresti
Northern Short-tailed Mouse
Leggadina lakedownensis
Büttner's African Forest Mouse
Leimacomys buettneri
Bare-tailed Tree-rat
Leiuromys occasius
Sagebrush Vole
Lemmiscus curtatus
Amur Brown Lemming
Lemmus amurensis
Norway Brown Lemming
Lemmus lemmus
Beringian Brown Lemming
Lemmus nigripes
East Siberian Brown Lemming
Lemmus novosibiricus
West Siberian Brown Lemming
Lemmus sibiricus
Nearctic Brown Lemming
Lemmus trimucronatus
Barbary Striped Grass Mouse
Lemniscomys barbarus
Griselda Striped Grass Mouse
Lemniscomys griselda
Hoogstraal's Striped Grass Mouse
Lemniscomys hoogstraali
Senegal Striped Grass Mouse
Lemniscomys linulus
Buffoon Striped Grass Mouse
Lemniscomys macculus
Mittendorf's Striped Grass Mouse
Lemniscomys mittendorfi
Single-striped Grass Mouse
Lemniscomys rosalia
Rosevear's Striped Grass Mouse
Lemniscomys roseveari
Typical Striped Grass Mouse
Lemniscomys striatus
Heuglin's Striped Grass Mouse
Lemniscomys zebra
Ring-tailed Lemur
Lemur catta
Groves's Giant Rat
Lenomys grovesi
Meyer's Giant Rat
Lenomys meyeri
Gray Tree Rat
Lenothrix cana
Andean Rat
Lenoxus apicalis
Black-faced Lion Tamarin
Leontopithecus caissara
Golden-headed Lion Tamarin
Leontopithecus chrysomelas
Black Lion Tamarin
Leontopithecus chrysopygus
Golden Lion Tamarin
Leontopithecus rosalia
Pantanal Cat
Leopardus braccatus
Central Chilean Colocolo
Leopardus colocola
Uruguayan Colocolo
Leopardus fasciatus
Northern Colocolo
Leopardus garleppi
Geoffroy's Cat
Leopardus geoffroyi
Kodkod
Leopardus guigna
Atlantic Forest Oncilla
Leopardus guttulus