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.
Weyland Ring-tailed Possum
Pseudochirulus caroli
Daintree River Ring-tailed Possum
Pseudochirulus cinereus
Painted Ring-tailed Possum
Pseudochirulus forbesi
Herbert River Ring-tailed Possum
Pseudochirulus herbertensis
Masked Ring-tailed Possum
Pseudochirulus larvatus
Pygmy Ring-tailed Possum
Pseudochirulus mayeri
Arfak Ring-tailed Possum
Pseudochirulus schlegelii
Bishop Moss Mouse
Pseudohydromys berniceae
Huon Small-toothed Moss Mouse
Pseudohydromys carlae
Laurie's Moss Mouse
Pseudohydromys eleanorae
Shaw Mayer's Shrew Mouse
Pseudohydromys ellermani
Mottled-tailed Shrew Mouse
Pseudohydromys fuscus
German's One-toothed Moss Mouse
Pseudohydromys germani
Eastern New Guinea Shrew Mouse
Pseudohydromys murinus
Torricelli Mountains Shrew Mouse
Pseudohydromys musseri
Western New Guinea Shrew Mouse
Pseudohydromys occidentalis
Woolley's Moss Mouse
Pseudohydromys patriciae
Southern Small-toothed Moss Mouse
Pseudohydromys pumehanae
White-bellied Moss Mouse
Pseudohydromys sandrae
Blue Sheep
Pseudois nayaur
Ash-gray Mouse
Pseudomys albocinereus
Silky Mouse
Pseudomys apodemoides
Long-eared Mouse
Pseudomys auritus
Plains Mouse
Pseudomys australis
Bolam's Mouse
Pseudomys bolami
Kakadu Pebble Mouse
Pseudomys calabyi
Western Pebble Mouse
Pseudomys chapmani
Northern Delicate Mouse
Pseudomys delicatulus
Desert Mouse
Pseudomys desertor
Australian Smoky Mouse
Pseudomys fumeus
Blue-grey Mouse
Pseudomys glaucus
Gould's Mouse
Pseudomys gouldii
Eastern Chestnut Mouse
Pseudomys gracilicaudatus
Sandy Inland Mouse
Pseudomys hermannsburgensis
Long-tailed Mouse
Pseudomys higginsi
Central Pebble Mouse
Pseudomys johnsoni
Eastern Delicate Mouse
Pseudomys mimulus
Western Chestnut Mouse
Pseudomys nanus
New Holland Mouse
Pseudomys novaehollandiae
Western Mouse
Pseudomys occidentalis
Hastings River Mouse
Pseudomys oralis
Eastern Pebble Mouse
Pseudomys patrius
Pilbara Delicate Mouse
Pseudomys pilbarensis
Heath Mouse
Pseudomys shortridgei
False Killer Whale
Pseudorca crassidens
Dark-brown Serotine
Pseudoromicia brunnea
Isabelline Serotine
Pseudoromicia isabella
Kityo's Serotine
Pseudoromicia kityoi
Mbam Minkom Serotine
Pseudoromicia mbamminkom
Nyanza Serotine
Pseudoromicia nyanza
Principe Serotine
Pseudoromicia principis
Rendall's Serotine
Pseudoromicia rendalli
Rosevear's Serotine
Pseudoromicia roseveari
White-winged Serotine
Pseudoromicia tenuipinnis
Saola
Pseudoryx nghetinhensis
Brazilian False Rice Rat
Pseudoryzomys simplex
Taiwanese Brown-toothed Shrew
Pseudosoriculus fumidus
Greater Musky Fruit Bat
Ptenochirus jagorii
Lesser Musky Fruit Bat
Ptenochirus minor
Mindanao Fruit Bat
Ptenochirus wetmorei