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.
Formosan Tube-nosed Bat
Harpiola isodon
Sulawesi Harpy Fruit Bat
Harpyionycteris celebensis
Philippine Harpy Fruit Bat
Harpyionycteris whiteheadi
African Smoky Mouse
Heimyscus fumosus
Sun Bear
Helarctos malayanus
Southern Silvery Mole-rat
Heliophobius argenteocinereus
Northern Silvery Mole-rat
Heliophobius kapiti
Gambian Sun Squirrel
Heliosciurus gambianus
Mutable Sun Squirrel
Heliosciurus mutabilis
Small Sun Squirrel
Heliosciurus punctatus
Red-legged Sun Squirrel
Heliosciurus rufobrachium
Ruwenzori Sun Squirrel
Heliosciurus ruwenzorii
Zanj Sun Squirrel
Heliosciurus undulatus
Ethiopian Dwarf Mongoose
Helogale hirtula
Common Dwarf Mongoose
Helogale parvula
Lemuroid Ring-tailed Possum
Hemibelideus lemuroides
Highland Streaked Tenrec
Hemicentetes nigriceps
Lowland Streaked Tenrec
Hemicentetes semispinosus
Common Long-eared Hedgehog
Hemiechinus auritus
Indian Long-eared Hedgehog
Hemiechinus collaris
Banded Palm Civet
Hemigalus derbyanus
Himalayan Tahr
Hemitragus jemlahicus
Jaguarundi
Herpailurus yagouaroundi
Angolan Slender Mongoose
Herpestes flavescens
Egyptian Mongoose
Herpestes ichneumon
Somalian Slender Mongoose
Herpestes ochraceus
Cape Gray Mongoose
Herpestes pulverulentus
Common Slender Mongoose
Herpestes sanguineus
Blanford's False Serotine
Hesperoptenus blanfordi
Doria's False Serotine
Hesperoptenus doriae
Gaskell's False Serotine
Hesperoptenus gaskelli
Tickell's False Serotine
Hesperoptenus tickelli
Large False Serotine
Hesperoptenus tomesi
Naked Mole-rat
Heterocephalus glaber
Chiriqui Pocket Gopher
Heterogeomys cavator
Cherrie's Pocket Gopher
Heterogeomys cherriei
Darién Pocket Gopher
Heterogeomys dariensis
Variable Pocket Gopher
Heterogeomys heterodus
Hispid Pocket Gopher
Heterogeomys hispidus
Big Pocket Gopher
Heterogeomys lanius
Underwood's Pocket Gopher
Heterogeomys underwoodi
Bush Hyrax
Heterohyrax brucei
Panamanian Spiny Pocket Mouse
Heteromys adspersus
Trinidad Spiny Pocket Mouse
Heteromys anomalus
Southern Spiny Pocket Mouse
Heteromys australis
Buller's Spiny Pocket Mouse
Heteromys bulleri
Overlook Spiny Pocket Mouse
Heteromys catopterius
Desmarest's Spiny Pocket Mouse
Heteromys desmarestianus
Gaumer's Spiny Pocket Mouse
Heteromys gaumeri
Goldman's Spiny Pocket Mouse
Heteromys goldmani
Mexican Spiny Pocket Mouse
Heteromys irroratus
Nelson's Spiny Pocket Mouse
Heteromys nelsoni
Cloud-dwelling Spiny Pocket Mouse
Heteromys nubicolens
Paraguana Spiny Pocket Mouse
Heteromys oasicus
Mountain Spiny Pocket Mouse
Heteromys oresterus
Painted Spiny Pocket Mouse
Heteromys pictus
Salvin's Spiny Pocket Mouse
Heteromys salvini
Jaliscan Spiny Pocket Mouse
Heteromys spectabilis
Ecuadorean Spiny Pocket Mouse
Heteromys teleus
Antillean Cave Rat
Heteropsomys antillensis