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.
Camiari Leaf-eared Mouse
Phyllotis camiari
Capricorn Leaf-eared Mouse
Phyllotis caprinus
Darwin's Leaf-eared Mouse
Phyllotis darwinii
Ancash Leaf-eared Mouse
Phyllotis definitus
Peruvian Leaf-eared Mouse
Phyllotis gerbillus
Haggard's Leaf-eared Mouse
Phyllotis haggardi
Lima Leaf-eared Mouse
Phyllotis limatus
Master Leaf-eared Mouse
Phyllotis magister
Walnut Leaf-eared Mouse
Phyllotis nogalaris
Western Leaf-eared Mouse
Phyllotis occidens
Osgood's Leaf-eared Mouse
Phyllotis osgoodi
Bunch Grass Leaf-eared Mouse
Phyllotis osilae
Pearson's Leaf-eared Mouse
Phyllotis pearsoni
Pehuenche Leaf-eared Mouse
Phyllotis pehuenche
Narrow-nasal Leaf-eared Mouse
Phyllotis stenops
Tucuman Leaf-eared Mouse
Phyllotis tucumanus
Punta de Vacas Leaf-eared Mouse
Phyllotis vaccarum
Yellow-rumped Leaf-eared Mouse
Phyllotis xanthopygus
Sperm Whale
Physeter macrocephalus
Upper Guinea Red Colobus
Piliocolobus badius
Bouvier's Red Colobus
Piliocolobus bouvieri
Niger Delta Red Colobus
Piliocolobus epieni
Foa's Red Colobus
Piliocolobus foai
Udzungwa Red Colobus
Piliocolobus gordonorum
Zanzibar Red Colobus
Piliocolobus kirkii
Lang's Red Colobus
Piliocolobus langi
Oustalet's Red Colobus
Piliocolobus oustaleti
Lomami Red Colobus
Piliocolobus parmentieri
Pennant's Red Colobus
Piliocolobus pennantii
Preuss's Red Colobus
Piliocolobus preussi
Tana River Red Colobus
Piliocolobus rufomitratus
Semliki Red Colobus
Piliocolobus semlikiensis
Ashy Red Colobus
Piliocolobus tephrosceles
Tshuapa Red Colobus
Piliocolobus tholloni
Miss Waldron's Red Colobus
Piliocolobus waldroni
Sulawesi Fruit Bat
Pilonycteris celebensis
Golden Viscacha Rat
Pipanacoctomys aureus
Mount Gargues Pipistrelle
Pipistrellus aero
Crete Pipistrelle
Pipistrellus creticus
Bioko Pipistrelle
Pipistrellus etula
Hanak's Pipistrelle
Pipistrellus hanaki
Dusky Pipistrelle
Pipistrellus hesperidus
Aellen's Pipistrelle
Pipistrellus inexspectatus
Kuhl's Pipistrelle
Pipistrellus kuhlii
Madeira Pipistrelle
Pipistrellus maderensis
Tiny Pipistrelle
Pipistrellus nanulus
Nathusius's Pipistrelle
Pipistrellus nathusii
Dar-es-Salaam Pipistrelle
Pipistrellus permixtus
Common Pipistrelle
Pipistrellus pipistrellus
Soprano Pipistrelle
Pipistrellus pygmaeus
Racey's Pipistrelle
Pipistrellus raceyi
Rusty Pipistrelle
Pipistrellus rusticus
Simandou Pipistrelle
Pipistrellus simandouensis
Red Tree Rat
Pithecheir melanurus
Malayan Tree Rat
Pithecheir parva
Bornean Tree Rat
Pithecheirops otion
Equatorial Saki
Pithecia aequatorialis
Buffy Saki
Pithecia albicans
Cazuza's Saki
Pithecia cazuzai
Golden-faced Saki
Pithecia chrysocephala