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.
Trevor's Free-tailed Bat
Mops trevori
Antillean Ghost-faced Bat
Mormoops blainvillei

Peters's Ghost-faced Bat
Mormoops megalophylla
Mauritian Little Mastiff Bat
Mormopterus acetabulosus
Sumatran Little Mastiff Bat
Mormopterus doriae
Reunion Little Mastiff Bat
Mormopterus francoismoutoui
Peters's Little Mastiff Bat
Mormopterus jugularis
Kalinowski's Little Mastiff Bat
Mormopterus kalinowskii
Least Little Mastiff Bat
Mormopterus minutus

Incan Little Mastiff Bat
Mormopterus phrudus

Indian Chevrotain
Moschiola indica

Yellow-striped Chevrotain
Moschiola kathygre

White-spotted Chevrotain
Moschiola meminna

Anhui Musk-deer
Moschus anhuiensis

Forest Musk-deer
Moschus berezovskii

Alpine Musk-deer
Moschus chrysogaster

Kashmir Musk-deer
Moschus cupreus
Black Musk-deer
Moschus fuscus

Himalayan Musk-deer
Moschus leucogaster

Siberian Musk-deer
Moschus moschiferus

Dark Sheath-tailed Bat
Mosia nigrescens
Gambian Mongoose
Mungos gambianus
Banded Mongoose
Mungos mungo

Narrow-striped Boky
Mungotictis decemlineata

Bornean Yellow Muntjac
Muntiacus atherodes

Black Muntjac
Muntiacus crinifrons

Fea's Muntjac
Muntiacus feae
Gongshan Muntjac
Muntiacus gongshanensis

Sumatran Mountain Muntjac
Muntiacus montanus

Southern Red Muntjac
Muntiacus muntjak
Puhoat Muntjac
Muntiacus puhoatensis
Leaf Muntjac
Muntiacus putaoensis

Reeves's Muntjac
Muntiacus reevesi
Roosevelts' Muntjac
Muntiacus rooseveltorum

Annamite Muntjac
Muntiacus truongsonensis

Northern Red Muntjac
Muntiacus vaginalis
Giant Muntjac
Muntiacus vuquangensis
Southern Short-furred Dasyure
Murexia aspera
Habbema Dasyure
Murexia habbema
Aru Short-furred Dasyure
Murexia longicaudata

Northern Short-furred Dasyure
Murexia maxima
Black-tailed Dasyure
Murexia melanura

Eastern Short-furred Dasyure
Murexia murex
Western Long-nosed Dasyure
Murexia naso

Broad-striped Dasyure
Murexia rothschildi
Eastern Long-nosed Dasyure
Murexia tafa
Lesser Dasyure
Murexia wilhelmina
Bronze Tube-nosed Bat
Murina aenea
Alvarez's Tube-nosed Bat
Murina alvarezi
Annam Tube-nosed Bat
Murina annamitica
Little Tube-nosed Bat
Murina aurata
Bala Tube-nosed Bat
Murina balaensis
Balete's Tube-nosed Bat
Murina baletei
Beelzebub Tube-nosed Bat
Murina beelzebub
Beibeng Tube-nosed Bat
Murina beibengensis
Bicolored Tube-nosed Bat
Murina bicolor
Chayu Tube-nosed Bat
Murina chayuensis
Golden-haired Tube-nosed Bat
Murina chrysochaetes

Round-eared Tube-nosed Bat
Murina cyclotis
Elery's Tube-nosed Bat
Murina eleryi