Although there is much more to mammalwatching than listing species, it is – for many of us – a fun way to track our effort. Mammal listing is nothing more than a friendly competition. But I believe it can motivate mammalwatchers and also lead to a more interactive and lively community. So if you have a list please share it here. Any questions about what people have seen or where? Just click on their list and ask them.
Create an account – or login to your account – then click on My Account from the top menu to add or manage your lists (or simply click here).
Download the list of all mammals (Can be used to create a pdf ready for uploading your list)
If you are interested in doing a Big Mammal Day then here are the rules. And here is a thread on whether to count bats based on sonograms.
All Mammals rankings
#
Name
No. of species
List
Latest observations
1
2274
Now following the September 2024 updated taxonomy. Latest: March 2025: Common Sword-nosed Bat, Yucatan Vesper Rat and Yucatan Cottontail in Mexico; January 2025: Robinson's Banded Langur and two horseshoe bats in Thailand; December 2024: Eastern Red Panda, Forest Musk Deer, Yunnan Snub-nosed Monkey and Yangtze Finless Porpoise in China; Beira, Dibatag, Somali Sengi and Abyssinian Genet among 14 lifers in Ethiopia's Somali Region and Djibouti; October 2024: Chinchilla and Chinchilla Rat in Chile among 5 new species there with at least another 9 in Bolivia including all the endemic Titi Monkeys, Brown Four-eyed Opossum and Bolivian River Dolphins; August 2024: Sagebrush Vole, Crater Chipmunk and Townsend's Pocket Gopher among 5 new rodents in the NW USA; Pygmy Sperm Whales and Sowerby's Beaked Whales in the Azores plus Azorean Noctules; June 2024: Bowhead Whales and Hooded Seals off of Svarlbard; May 2024 Dwarf Sperm Whales and Vaquita (!) in Baja California; April 2024: Tehuantepec Jackrabbits among 15 lifers in Chiapas & Oaxaca; March 2024: 11 lifers in Ivory Coast including Dwarf Anomalure, White-bellied Pangolin and a stunning Liberian Mongoose. Previous highlights include Giant Pangolin, Giant Armadillo, Giant Panda, Pygmy Hippo, Bactrian Camel and Western Long-beaked Echidna.
2
1573
Highlights include: Marbled Polecat, Western Long-nosed Echidna, Long-fingered Triok, Grizzled & Ursine Tree Kangaroos, White-bellied Pangolin, Kha-nyou, Lao Langur, Grey-shanked Douc, Javan Rhino, Giant Panda, Giant Armadillo, Aye-aye, Maned Rat, all Douc's, both Red Pandas, Hispanolian Solenodon, Wrinkle-faced Bat, Libyan Striped Weasel, Otter Civet, Chinese Pangolin, Hirola and Black-footed Mongoose - last updated on 13th August 2024
3
1260
One of my aims in retirement was to start organizing my mammal life list. List so far. Memorable sightings from each continent: Antarctica - Leopard Seal, North America-Blue Whale, South America-Maned Wolf, Europe-European Mink, Africa-Giant Pangolin, Asia-Eurasian Lynx, Oceania-Western Long-beaked Echidna
4
1160
Sunda Pangolin on Phuket, Thailand
5
1124
2024 highlights include Small-toothed Ferret-Badger, 6-banded Armadillo, Golden and White Bare-eared Marmoset, Bald Uakari, Black and Ute Hick's Saki, Yunnan Snub-nosed Monkey, White-headed Langur, Indomalayan Pencil-tailed Treehouse, Lesser Marmoset Rat. Here's to 2025!
6
971
2025 highlights: Indonesia: Siberut langur, Siberut flying squirrel; Colombia: Northern oncilla; 2024 highlights: Java: Javan gibbon; Madagascar: Ring-tailed vontsira, Aye-aye, Chile: Andean mountain cat, Marine otter, Darwin's fox; Estonia: Eurasian lynx; UAE: Arabian thar, Arabian oryx; Previous highlights include: Giant panda after two years living in Wolong Panda Reserve, my first of all eight bear spp; 30 species of cat but recent sightings of Asian Golden Cat and Marbled cat stand out; and Wolves anytime, anywhere.
7
965
Latest observations: Dibatag, Beira, Maned Rat, Silver Dik-dik, Somali Sengi, Ethiopian Genet, Mandrill, Black Colobus, Beecroft's Anomalure, Red River Hog, Striped Dolphin, Sand Cat, Libyan Striped Weasel, Fennec Fox, Azores Noctule, Grandidier's Mongoose, Indri, Silky Sifaka, Eastern Sucker-footed Bat, Fossa and Aye-aye, . Previous highlights include: Hirola, Kodkod, Ethiopian Wolf, Mountain Nyala, Gelada, Tiger, Jaguar, Blue Whale, North Atlantic Right Whale, Sei Whale, Hector's Dolphin, Meller's Mongoose, Cape Golden Mole, Monito del Monte, Raffles' Banded Langur, Thumbless Bat, Central American Silky Anteater, Banteng, Javan Gibbon, Striped Hyena, Side-striped Jackal, Olinguito, Napo Saki, Maned Sloth, Northern Muriqui, Black-faced Lion Tamarin, Giant Otter, Northern Elephant Seal, Galapagos Fur Seal, Baird's Tapir and Honduran White Bat.
8
844
White-eared opossum, bristle-spined porcupine Brazil
9
745
Red Panda & Golden Snub-nosed Monkey
10
719
All records visible on iGoTerra
11
665
No trapping. All-time favorites: wolverine, snorkeling w/blue whales, snow leopard. Other highlights: 2024-Sun Bear, Black Panther, Melanistic Serval, Canada Lynx | 2023-Jaguar, Maned Wolf, Marbled Cat, Sunda pangolin | 2022-Aye-aye, Fossa, many lemurs, Ganges River Dolphin | 2021-Ground Pangolin, Iberian Lynx | 2020-Mountain Lion | 2019-Black-bellied Pangolin, Cameron Scaly-tail, Ethiopian Wolf | 2018-Tiger, Tibetan Gray Wolf | 2017-Tayra and many more since 2000.
12
651
as of April 2024. most recent: Amami Rabbit, Ryukyu Spiny Rat, Ryukyu Flying Fox, Japanese Weasel (Japan, April 2024), Chuuk Flying Fox, Pygmy Sperm Whale, False Killer Whale, Omura's Whale, Rough-toothed Dolphin (Western Pacific Odyssey, March/April 2024), Lyle's Flying Fox
13
626
Latest new speciNelson's Antelope Squirrel. Highlights: 56 species of lemurs in the summer of 2023, Blue Whale, Grey Whale, Sea Otter, Northern Elephant Seal, Bobcat, Iberian Lynx, Marbled Cat, , Mediterranean Monk Seal, Wolf, Wisent, Dugong, Siamang, Fin Whale, Bowhead Whale, Southern Right Whale, Killer Whale, Tiger, Lion, Leopard, Cougar, Jaguar, Maned Wolf, Giant Anteater, Mountain Tapir, Andean Bear, Brown Bear, American Black Bear, Sloth Bear, Black Rhinoceros, 47 species of kangaroo-like marsupials during a year in Australia, Numbat, Platypus, Tasmanian Devil, Bornean and Sumatran Orangutan, Pyrenean Desman and a Walrus in the Netherlands.
14
616
Black Agouti, Andean White-eared Opossum and Marañón White-fronted Capuchin
15
600
Using iNaturalist taxonomy, including IDs to genus or with multiple possibilities. Rarest species (least observed on iNat): Woolly Dormouse, Mountain Mole Vole, King Jird, Dark-tailed Tree Rat, Myotis hoveli, Southeast Asian Shrew, Common Rufous-nosed Rat, Emin's Gerbil, Benin Tree Hyrax
16
580
Mountain Hare, Cairngorm, Scotland 6/22, Greater One-horned Rhino, Western Hoolock, NE India 4/22. All observations are on on Igoterra.
17
577
I have seen almost every mammal that Jan Ebr has seen, except for 24 species. And I even have one extra - African Clawless Otter!
18
572
Last noticeable observation: long-tailed pangolin in Ghana / Highlights: swimming with humpback whales in Tonga, mountain gorillas in Uganda, Pumas in Chile, giant panda in Sichuan
19
565
The last mammal seen until today: March 2025 Bornean yellow muntjac in Sabah, Borneo. Other highlights: All my 35 felines. Ethiopian wolf, Spectacled bear, African wild dog, Mountain gorilla, Chimpanzee, Fossa, Maned wolf.
20
456
Feb 2025 - 40+ lifers in Uganda Jan '25;
21
425
Highlights include marbled polecat, aye-aye, cotton-topped tamarin, hirola, naked mole-rat, Pel's anomalure, moonrat, white-bellied pangolin, grey whale etc
22
400
Big brown bat
23
374
Higlights include Platypus, Hottentot golden mole, Golden rumped sengi, Selayar tarsier, Western Pygmy marmoset, Brazilian porcupine, Oncilla, Ethiopian wolf, Sun bear, Cacomistle, Chinese forest musk deer, Gerenuk, and Atlantic humpback dolphin. Full list available here: https://observation.org/users/78915/species/#chart
24
372
Drill Monkey, Flightless Anomalure, nCentral African Oyan, Florida Panther (Puma), Wolverine, Polar Bear, Narwhal, Arnoux’s Beaked Whale, Northern Right-Whale Dolphin, Hectors Dolphin, Monjon, Spectacled Hare Wallaby, Lumholtz Tree Kangaroo, Tasmanian Devil, Rakali, Bengal Tiger, Fishing Cat, Sunda Leopard Cat, Striped Hyena, Bornean Banded Civet, Vanikoro Flying Fox, Solomons Flying Fox, Leopard Seal, Common Spotted Cuscus, Bushpig, Red Slender Loris, Bornean Slow Loris, Aardvark, Eastern Gorilla, Chimpanzee, Bornean Orangutan, Western Pygmy Marmoset, Beecroft’s Anomalure, Neotropical and Giant River Otters, Tibetan Wolf, Dhole, Island Fox
25
366
Update 07/2024: 366 species seen in the wild, total 1,086 species seen including the ones in captive settings
26
350
Spent my entire 2023 summer in Katmai National Park, Alaska. Highlights include daily Brown Bears in addition to wolves, canada lynx, north american porcupines, northern red backed vole, and ermine.
27
320
Latest: Flat-headed Cat, Banded Civet and Javan Ferret Badger. Highlights: Mandrills, Bonobo, Giant Pangolin, Aardvark, Marbled Cat, Black-bellied Pangolin and Giant Otter Shrew.
28
307
Of which 5 only in non-native range (Eastern gray squirrel, Algerian hedgehog, Musk ox, Raccoon, Musk rat) Heard-onlies: Malayan Porcupine and Fire-footed Rope Squirrel
29
297
Most recent: Snow Leopard, Pallas's Cat, Red Panda, Sloth Bear. Previous highlights: Spectacled Bear, Silky Anteater, Mountain Beaver
30
246
Latest lifers - 3x mole-rats, Stone Marten, European Mink in Romania; Caracal & Cape Mountain Zebra in South Africa.
31
224
Short beaked common dolphin, Gothenborg, Sweden 2025-01-30
32
208
Most recent: Formosan Serow, Formosan Woolly Horseshoe Bat, Taiwan Giant Flying Squirrel, Eastern Tur and Greater Horseshoe Bat. Highlights: Sun Bear, Sloth Bear, Mainland Serow, Queensland Tube-nosed Fruit Bat, Amazon River Dolphin.
33
196
Latest Observations: Red-necked Pademelon, Red-necked Wallaby, Sugar Glider & Short-eared Brush-tailed Possum. Previous Highlights: Sun Bear, Sulawesi Bear Cuscus, Celebes Crested Macaque, Western Tarsier, Sunda Slow Loris, Bornean Orangutan, Siamang, Black Snub-nosed Monkey, Painted Wolf, Lion, White Rhinoceros, Blue Whale
34
191
Leopards and Tigers at Rajasthan, India
35
185
Latest finds; Nyala, Angolan Free-tailed Bat and Single-striped Grass Mouse, South Africa June 2023. Previous highlights; Eastern Quoll, Southern Bettong, Tasmania 2013. White-beaked Dolphin, Harbour Porpoise, Iceland 2016. Arabian Oryx, Sand Gazelle, UAE 2016.
36
180
Sloth bear, jungle cat along with indian leopard, tiger, dhole, gaur etc in central india
37
179
Highlights: Spectral Tarsier (the proper ones on Selayar), Southern Luzon Giant Cloud Rat, Aardwolf, Ethiopian Wolf, Javanese Flying Squirrel
38
173
Latest Observations: Argentine Grey Fox and Guanaco in Chile. Highlight: Black-footed Cat in South Africa.
39
172
Latest - 60+ new species in East Africa in July, plus a couple more in Colorado in September 2024. Highlights include Red Wolf, Rough-toothed Dolphin, and Melanistic Leopard.
40
168
Latest observations in California with Douglas's Ground Squirrel and Yellow-cheeked Chipmunk plus Piute Ground Squirrel in Nevada. Previous highlights include: North American Porcupine in Elko, Cougar in Point Reyes, Northern Right Whale Dolphin on a Farallon Islands pelagic, Red Wolf in Alligator River, Brant's Whistling Rat in the Kalahari, Serval in the Pilansberg, and Caracal in the Garden Route.
41
167
Latest (Mar 2025, South Island of New Zealand) : Sperm Whale, Fin Whale, Dusky Dolphin, Hector's Dolphin, NZ Sea Lion, and .... the Brown Rat!
42
165
Orcas and Elefants seals in Peninsula Valdès. Highlight includes Andean Bear.
43
152
Phayre's leaf monkey (Trachypithecus phayrei). Mainland leopard cat (Prionailurus bengalensis). Least weasel (Mustela nivalis)
44
140
Latest addition was Eastern Fox Squirrel (Sciurus niger) in Ohio on 2024-04-08
45
134
Marbled polecat, Grey whale, Serval, Brown bear, American black bear, Lion, Leopard etc
46
132
Latest lifers: Taxonomy fix with Harnessed bushbuck and removed insignificant subspecies. Eastern Rock Elephant Shrew in Matopos national park. Chasing a White rhino at night, Acacia rat, Southern reedbuck, and a Mutable sun squirrel . A reidentification of a genet seen from Common to Large-spotted. Previous higlights include Bison, Red wolf, Slender Mongoose, Sanje Mangabey, African wild dog, etc.
47
129
Latest: Harbour Porpoise (11/11/24 Criccieth, Wales) Reeve's Muntjac (27/08/24 Aston Eyot, Oxford, England)
48
128
Poland May 2024: Eurasian Bison, European Elk, Eurasian Beaver, Pine Martin
49
121
Latest lifer: greater horseshoe bat (in an Albanian bunker, August 2024)
Highlights: orangutan, humpback whale, platypus,...
50
117
August 2024: Southern Right Whale, Short-beaked Echidna, Grey-headed Flying Fox, Koala, Bare-nosed Wombat
51
115
Highlights: Serval, African Wild Dog, Indri
52
107
Lynx, wolf, bear and wildcat in Poland 2025
53
105
Highlights - Blue Whale in Sri Lanka, Leopard in South Africa, African Wild Dos in Namibia.
54
105
Serval, honey badger, blue whale, golden lion tamarin, sperm whale, short-tailed weasel
55
93
Latest: American Red Squirrel in Utah, Gunnison Prairie Dog in New Mexico. Highlights: Canada Lynx in Colorado & Japanese Giant Flying Squirrel in Karuizawa, JP
56
86
Latest Lifers: Bush Rat, White-striped Freetail Bat, Agile Antechinus, Long-tailed Mouse, Common Dolphin. Highlights: Sea Otter, Spotted-tail Quoll, Brown Bear
57
78
Highlights: Sperm Whale, Cuvier's Beaked Whale, Hector's Dolphin
58
62
Kiskendo Cave, Yogyakarta, Java, 7th Oct 2023. Canut’s Horsesshoe-bat
59
62
2024 highlights: Himalayan grey langur, dusky langur, banded langur, gaur, banteng. Previous highlights: Asian elephant, dingo, eastern quoll, platypus, greater glider, American bison
60
61
List is based on iNaturalist pictures/observations. Barbary macaques in March 2023. Mountain gorillas, colobus monkeys, common hippos, forest and savanna elephants, warthogs and De Brazza's monkey in June 2023. 11 lemurs including a hibernating dwarf lemur, many hours observing Milne-Edwards' Sifaka, 5 other Malagasy mammals including Ring-tailed Vontsira, Lowland Streaked Tenrec, and endemic rodents in June-Aug 2024. Started out 2025 strong with an American Mink in Saratoga Springs, NY and a Northern short-tailed shrew on Long Island, NY.
61
50
Highlights include: amazon river dolphin, platypus, greater bilby, shark bay bandicoot and bolivian red howler monkey.
62
45
Small Indian Mongoose
63
45
List of all mammals across life so far
64
28
Humpback whale was a thrill!
65
24
Galictis vittata, Ateles geoffroyi, Leopardus pardalis, Bassariscus sumichrasti and others.