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.
Social Sprite
Arielulus societatis
Necklace Sprite
Arielulus torquatus
Jamaican Fig-eating Bat
Ariteus flavescens
Ecuadorian Fruit-eating Bat
Artibeus aequatorialis
Large Fruit-eating Bat
Artibeus amplus
Brown Fruit-eating Bat
Artibeus concolor
Fringed Fruit-eating Bat
Artibeus fimbriatus
Fraternal Fruit-eating Bat
Artibeus fraterculus
Hairy Fruit-eating Bat
Artibeus hirsutus
Honduran Fruit-eating Bat
Artibeus inopinatus
Intermediate Fruit-eating Bat
Artibeus intermedius
Jamaican Fruit-eating Bat
Artibeus jamaicensis
Great Fruit-eating Bat
Artibeus lituratus
Dark Fruit-eating Bat
Artibeus obscurus
Flat-faced Fruit-eating Bat
Artibeus planirostris
Schwartz's Fruit-eating Bat
Artibeus schwartzi
Abyssinian Grass Rat
Arvicanthis abyssinicus
Sudanian Grass Rat
Arvicanthis ansorgei
Blick's Grass Rat
Arvicanthis blicki
Mearns' Grass Rat
Arvicanthis mearnsi
Nairobi Grass Rat
Arvicanthis nairobae
Neumann's Grass Rat
Arvicanthis neumanni
African Grass Rat
Arvicanthis niloticus
Rafferty's Grass Rat
Arvicanthis raffertyi
Guinean Grass Rat
Arvicanthis rufinus
Menangesha Grass Rat
Arvicanthis saturatus
Somalian Grass Rat
Arvicanthis somalicus
Eurasian Water Vole
Arvicola amphibius
Italian Water Vole
Arvicola italicus
Persian Water Vole
Arvicola persicus
Southwestern Water Vole
Arvicola sapidus
Arabian Trident Roundleaf Bat
Asellia arabica
Somalian Trident Roundleaf Bat
Asellia italosomalica
Patrizi's Trident Roundleaf Bat
Asellia patrizii
Geoffroy's Trident Roundleaf Bat
Asellia tridens
Dong Bac Trident Roundleaf Bat
Aselliscus dongbacanus
Stoliczka's Trident Roundleaf Bat
Aselliscus stoliczkanus
Temminck's Trident Roundleaf Bat
Aselliscus tricuspidatus
Four-toed Hedgehog
Atelerix albiventris
North African Hedgehog
Atelerix algirus
Southern African Hedgehog
Atelerix frontalis
Somali Hedgehog
Atelerix sclateri
White-bellied Spider Monkey
Ateles belzebuth
Black Spider Monkey
Ateles chamek
Brown-headed Spider Monkey
Ateles fusciceps
Central American Spider Monkey
Ateles geoffroyi
Variegated Spider Monkey
Ateles hybridus
White-whiskered Spider Monkey
Ateles marginatus
Red-faced Black Spider Monkey
Ateles paniscus
Short-eared Dog
Atelocynus microtis
African Brush-tailed Porcupine
Atherurus africanus
Asian Brush-tailed Porcupine
Atherurus macrourus
Marsh Mongoose
Atilax paludinosus
Barbary Ground Squirrel
Atlantoxerus getulus
Giant Solenodon
Atopogale arredondoi
Cuban Solenodon
Atopogale cubana
Bolivian Big-eared Mouse
Auliscomys boliviensis
Painted Big-eared Mouse
Auliscomys pictus
Andean Big-eared Mouse
Auliscomys sublimis
White-striped Free-tailed Bat
Austronomus australis