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.
Long-tailed Pocket Mouse
Chaetodipus formosus
Goldman's Pocket Mouse
Chaetodipus goldmani
Hispid Pocket Mouse
Chaetodipus hispidus
Rock Pocket Mouse
Chaetodipus intermedius
Nelson's Coarse-haired Pocket Mouse
Chaetodipus nelsoni
Desert Pocket Mouse
Chaetodipus penicillatus
Southern Sinaloan Pocket Mouse
Chaetodipus pernix
Northern Sinaloan Pocket Mouse
Chaetodipus rostratus
Peninsular Pocket Mouse
Chaetodipus rudinoris
Cerralvo Island Pocket Mouse
Chaetodipus siccus
Spiny Pocket Mouse
Chaetodipus spinatus
Broomstraw-spined Porcupine
Chaetomys subspinosus
Screaming Hairy Armadillo
Chaetophractus vellerosus
Large Hairy Armadillo
Chaetophractus villosus
Large-eared Pied Bat
Chalinolobus dwyeri
Gould's Wattled Bat
Chalinolobus gouldii
Chocolate Wattled Bat
Chalinolobus morio
New Caledonian Wattled Bat
Chalinolobus neocaledonicus
Hoary Wattled Bat
Chalinolobus nigrogriseus
Coastal Wattled Bat
Chalinolobus orarius
Little Pied Bat
Chalinolobus picatus
New Zealand Long-tailed Bat
Chalinolobus tuberculatus
Montagne d'Ambre Dwarf Lemur
Cheirogaleus andysabini
Crossley's Dwarf Lemur
Cheirogaleus crossleyi
Groves's Dwarf Lemur
Cheirogaleus grovesi
Lavasoa Dwarf Lemur
Cheirogaleus lavasoensis
Greater Dwarf Lemur
Cheirogaleus major
Fat-tailed Dwarf Lemur
Cheirogaleus medius
Lesser Iron-gray Dwarf Lemur
Cheirogaleus minusculus
Ankarana Dwarf Lemur
Cheirogaleus shethi
Sibree's Dwarf Lemur
Cheirogaleus sibreei
Thomas's Dwarf Lemur
Cheirogaleus thomasi
Lesser Naked Bat
Cheiromeles parvidens
Greater Naked Bat
Cheiromeles torquatus
Chilean Long-clawed Mouse
Chelemys megalonyx
Aquino's Titi
Cheracebus aquinoi
Yellow-handed Titi
Cheracebus lucifer
White-chested Titi
Cheracebus lugens
Medem's Titi
Cheracebus medemi
Rio Juruá Collared Titi
Cheracebus regulus
White-collared Titi
Cheracebus torquatus
Northern Andean Water Mouse
Chibchanomys trichotis
Carapaz's Forest Mouse
Chilomys carapazi
Smoky Forest Mouse
Chilomys fumeus
Ledeci's Forest Mouse
Chilomys georgeledecii
Colombian Forest Mouse
Chilomys instans
Neisi Forest Mouse
Chilomys neisi
Percequillo's Forest Mouse
Chilomys percequilloi
Weksler's Forest Mouse
Chilomys weksleri
Cuban Lesser Funnel-eared Bat
Chilonatalus macer
Caribbean Lesser Funnel-eared Bat
Chilonatalus micropus
Bahamian Lesser Funnel-eared Bat
Chilonatalus tumidifrons
Ningxia Three-toed Jerboa
Chimaerodipus auritus
Malayan Water Shrew
Chimarrogale hantu
Himalayan Water Shrew
Chimarrogale himalayica
Leander's Water Shrew
Chimarrogale leander
Bornean Water Shrew
Chimarrogale phaeura
Japanese Water Shrew
Chimarrogale platycephala
Chinese Water Shrew
Chimarrogale styani
Sumatran Water Shrew
Chimarrogale sumatrana