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.
Nicobar Archipelago Rat
Rattus burrus
Seram Island Mountain Rat
Rattus ceramicus
Australian Dusky Rat
Rattus colletti
Manus Island Spiny Rat
Rattus detentus
Sula Archipelago Rat
Rattus elaphinus
Enggano Island Rat
Rattus enganus
Philippine Forest Rat
Rattus everetti
Pacific Rat
Rattus exulans
Lore Lindu Xanthurus Rat
Rattus facetus
Feiler's Rat
Rattus feileri
Spiny Seram Island Rat
Rattus feliceus
Australian Bush Rat
Rattus fuscipes
Mount Giluwe Rat
Rattus giluwensis
Hainald's Flores Island Rat
Rattus hainaldi
Halmahera Island Rat
Rattus halmaheraensis
Hoffmann's Sulawesi Rat
Rattus hoffmanni
Hoogerwerf's Sumatran Rat
Rattus hoogerwerfi
Yapen Island Rat
Rattus jobiensis
Koopman's Peleng Island Rat
Rattus koopmani
Sumatran Mountain Rat
Rattus korinchi
Cape York Rat
Rattus leucopus
Losea Rat
Rattus losea
Mentawai Rat
Rattus lugens
Australian Swamp Rat
Rattus lutreola
Maclear's Rat
Rattus macleari
Marmoset Xanthurus Rat
Rattus marmosurus
Mindoro Mountain Rat
Rattus mindorensis
Lampobatang Sulawesi Rat
Rattus mollicomulus
Sri Lankan Mountain Rat
Rattus montanus
Eastern New Guinea Rat
Rattus mordax
Moluccan Prehensile-tailed Rat
Rattus morotaiensis
Bulldog Rat
Rattus nativitatis
Gag Island Rat
Rattus nikenii
Eastern New Guinea Mountain Rat
Rattus niobe
White-footed Indochinese Rat
Rattus nitidus
Brown Rat
Rattus norvegicus
Papua New Guinea Rat
Rattus novaeguineae
Obi Island Rat
Rattus ombirah
Arianus's New Guinea Mountain Rat
Rattus omichlodes
Osgood's Vietnamese Rat
Rattus osgoodi
Car Nicobar Rat
Rattus palmarum
Peleng Island Xanthurus Rat
Rattus pelurus
Pocock's New Guinea Highland Rat
Rattus pococki
Large New Guinea Spiny Rat
Rattus praetor
Himalayan Rat
Rattus pyctoris
Radityani's Rat
Rattus radityaniae
Ranjini's Rat
Rattus ranjiniae
Roof Rat
Rattus rattus
Richardson's New Guinea Mountain Rat
Rattus richardsoni
Little Indochinese Field Rat
Rattus sakeratensis
Southeastern Xanthurus Rat
Rattus salocco
New Ireland Forest Rat
Rattus sanila
Sahyadris Forest Rat
Rattus satarae
Simalur Archipelago Rat
Rattus simalurensis
Canefield Rat
Rattus sordidus
Stein's New Guinea Rat
Rattus steini
Andaman Archipelago Rat
Rattus stoicus
Taliabu Island Rat
Rattus taliabuensis
East Asian House Rat
Rattus tanezumi
Tawitawi Forest Rat
Rattus tawitawiensis