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.
Orinoco Sword-nosed Bat
Lonchorhina orinocensis
Tuft-tailed Spiny Tree-rat
Lonchothrix emiliae

Northern Neotropical River Otter
Lontra annectens

North American River Otter
Lontra canadensis

Marine Otter
Lontra felina

Central Neotropical River Otter
Lontra longicaudis

Southern River Otter
Lontra provocax

Maned Rat
Lophiomys imhausii

Gray-cheeked Mangabey
Lophocebus albigena

Black Crested Mangabey
Lophocebus aterrimus

Johnston's Mangabey
Lophocebus johnstoni
Southern Black Crested Mangabey
Lophocebus opdenboschi

Rusty-Mantled Mangabey
Lophocebus osmani

Ugandan Crested Mangabey
Lophocebus ugandae

Pygmy Round-eared Bat
Lophostoma brasiliense

Carriker's Round-eared Bat
Lophostoma carrikeri

Davis's Round-eared Bat
Lophostoma evote
Kalko's Round-eared Bat
Lophostoma kalkoae

Mesoamerican Round-eared Bat
Lophostoma nicaraguae
Western Round-eared Bat
Lophostoma occidentale

Schulz's Round-eared Bat
Lophostoma schulzi

White-throated Round-eared Bat
Lophostoma silvicola
Angolan Brush-furred Rat
Lophuromys angolensis

Ansorge's Brush-furred Rat
Lophuromys ansorgei
Dark-colored Brush-furred Rat
Lophuromys aquilus
Short-tailed Brush-furred Rat
Lophuromys brevicaudus
Ethiopian Brush-furred Rat
Lophuromys brunneus
Mount Chercher Brush-furred Rat
Lophuromys chercherensis
Ethiopian Forest Brush-furred Rat
Lophuromys chrysopus
Gray Brush-furred Rat
Lophuromys cinereus
Mount Oku Brush-furred Rat
Lophuromys dieterleni
Dudu's Brush-furred Rat
Lophuromys dudui
Mount Lefo Brush-furred Rat
Lophuromys eisentrauti
Buff-spotted Brush-furred Rat
Lophuromys flavopunctatus
Hutterer's Brush-furred Rat
Lophuromys huttereri
Kilonzo's Brush-furred Rat
Lophuromys kilonzoi
Albertine Rift Brush-furred Rat
Lophuromys laticeps
Buff-bellied Brush-furred Rat
Lophuromys luteogaster
Machangu's Brush-furred Rat
Lophuromys machangui
Makundi's Brush-furred Rat
Lophuromys makundii
Margaret's Brush-furred Rat
Lophuromys margarettae
Western Rift Brush-furred Rat
Lophuromys medicaudatus
Black-clawed Brush-furred Rat
Lophuromys melanonyx
North Western Rift Brush-furred Rat
Lophuromys menageshae
Naked-tailed Brush-furred Rat
Lophuromys nudicaudus
Sheko Forest Brush-furred Rat
Lophuromys pseudosikapusi
Rahm's Brush-furred Rat
Lophuromys rahmi
Congolese Brush-furred Rat
Lophuromys rita
Mount Cameroon Brush-furred Rat
Lophuromys roseveari
Sabuni's Brush-furred Rat
Lophuromys sabunii

Western Brush-furred Rat
Lophuromys sikapusi
Simien Brush-furred Rat
Lophuromys simensis
Rwenzori Brush-furred Rat
Lophuromys stanleyi
Verhagen's Brush-furred Rat
Lophuromys verhageni
Woosnam's Brush-furred Rat
Lophuromys woosnami
Zena Brush-furred Rat
Lophuromys zena

Long-footed Tree Mouse
Lorentzimys nouhuysii

Gray Slender Loris
Loris lydekkerianus

Red Slender Loris
Loris tardigradus

African Savanna Elephant
Loxodonta africana