This post is a list of popular mammals. This list was generated with the help of Google Search. There are 72 species listed below alphabetically. Wikipedia says, "Mammals are vertebrate animals... characterized by the presence of mammary glands... a neocortex (a region of the brain), fur or hair and three middle ear bones." (Wikipedia: Mammal, 10.30.22 UTC 01:25)
Armadillo (Dasypodidae)
Photo source: Wikimedia Commons, JaguarXtreme2019
License: CC BY-SA 4.0
Anteater (Myrmecophagidae)
Photo source: Wikimedia Commons, Dave Pape
Badger (Meles)
Photo source: Wikimedia Commons, Byrdyak
License: CC BY-SA 4.0
Bat (Chiroptera)
Photo source: Wikimedia Commons, U.S. Fish and Wildlife Service Headquarters
License: CC BY 2.0
Bear (Urisdae)
Photo source: Wikimedia Commons, Peupleloup
License: Free Art License 1.3
Beaver (Castor)
Photo source: Wikimedia Commons, Greg Schechter
License: CC BY 2.0
Bison (Bison bison)
Photo source: Wikimedia Commons, Donarreiskoffer
License: CC BY-SA 4.0
Bobcat (Lynx rufus)
Photo source: Wikimedia Commons, Don DeBold
License: CC BY-SA 2.0
Camel (Camelus)
Photo source: Wikimedia Commons, Zairon
License: CC BY-SA 4.0
Cat (Felis silvestris catus)
Photo source: Wikimedia Commons, Hisashi
License: CC BY-SA 2.0
Cattle (Bos taurus)
Photo source: Wikimedia Commons, Zachi Evenor
License: CC BY 2.0
Cheetah (Acinonyx jubatus)
Photo source: Wikimedia Commons, Rob Qld
License: CC BY 2.0
Colugo (Dermoptera)
Photo source: Wikimedia Commons, Lip Kee Yap
License: CC BY-SA 2.0
Cougar (Puma concolor)
Photo source: Wikimedia Commons, National Park Service
Coyote (Canis latrans)
Photo source: Wikimedia Commons, Don DeBold
License: CC BY 2.0
Deer (Cervidae)
Photo source: Wikimedia Commons, Charles J Sharp
License: CC BY-SA 4.0
Dog (Cannis familiaris)
Photo source: Wikimedia Commons, Gerardolagunes
License: CC BY-SA 4.0
Dolphin (Delphinidae)
Photo source: Wikimedia Commons, NOAA NMFS
Donkey (Equus asinus)
Photo source: Wikimedia Commons, Marshal Hedin
License: CC BY-SA 2.0
Elephant (Elephantidae)
Photo source: Wikimedia Commons, Ikiwaner
Elk (Cervus canadensis)
Photo source: Wikimedia Commons, MONGO
Fox (Vulpes)
Photo source: Wikimedia Commons, Maarten Nijman
License: CC BY-SA 2.0
Gazelle (Gazella)
Photo source: Wikimedia Commons, Ikiwaner
Giraffe (Giraffa camelopardalis)
Photo source: Wikimedia Commons, Miroslav Duchacek
License: CC BY-SA 3.0
Goat (Capra)
Photo source: Wikimedia Commons, Javier Garcia Diz
License: CC BY-SA 3.0
Hedgehog (Erinaceus europaeus)
Photo source: Wikimedia Commons, Jorg Hempel
License: CC BY-SA 2.0 DE
Hippopotamus (Hippopotamus amphibius)
Photo source: Wikimedia Commons, TheLizardQueen
License: CC BY 2.0
Horse
Photo source: Wikimedia Commons, Tania Gail
License: CC BY 2.0
Human (Homo sapien)
Photo source: Wikimedia Commons, United States Library of Congress
Hyena
Photo source: Wikimedia Commons, Sumeet Moghe
License: CC BY-SA 3.0
Impala (Aepyceros)
Photo source: Wikimedia Commons, Ikiwaner
Jaguar (Panthera onca)
Photo source: Wikimedia Commons, Mark Jones
License: CC BY 2.0
Kangaroo (Macropus)
Photo source: Wikimedia Commons, Fir0002/flagstaffotos
License: CC BY-NC 3.0
Koala
Photo source: Wikimedia Commons, Till Niermann
License: CC BY 3.0
Llama (Lama glama)
Photo source: Wikimedia Commons, Lukirossi95
License: CC BY-SA 4.0
Leopard (Panthera pardus)
Photo source: Wikimedia Commons, Derek Keats
License: CC BY 2.0
Lion (Panthera leo)
Photo source: Wikimedia Commons, Bernard DUPONT
License: CC BY-SA 2.0
Manatee (Trichechus)
Photo source: Wikimedia Commons, Jim P. Reid and U.S. Fish and Wildlife Service
Marmot (Marmota)
Photo source: Wikimedia Commons, Mount Rainier National Park
License: CC BY 2.0
Mole (Talpidae)
Photo source: Wikimedia Commons, Stanislaw Szydlo
License: CC BY-SA 3.0
Moose (Alces alces)
Photo source: Wikimedia Commons, U.S. Fish and Wildlife Service
Mouse (Muridae)
Photo source: Wikimedia Commons, Alouise Lynch
License: CC BY-SA 4.0
Muskrat (Ordatra zibethicus)
Photo source: Wikimedia Commons, Alexander Klink
License: CC BY 4.0
Opossum (Didelphidae)
Photo source: Wikimedia Commons, Andrew C
License: CC BY 2.0
Otter (Lutrinae)
Photo source: Wikimedia Commons, Peter Trimming
License: CC BY 2.0
Pangolin (Pholidata)
Photo source: Wikimedia Commons, B kimmel
License: CC BY-SA 4.0
Pig (Sus scrofa)
Photo source: Wikimedia Commons, Steve Hillebrand and U.S. Fish and Wildlife Service
Platypus (Ornithorhynchus anatinus)
Photo source: Wikimedia Commons, Klaus
License: CC BY-SA 2.0
Porcupine (Erethizontidae)
Photo source: Wikimedia Commons, Eric Kilby
License: CC BY-SA 2.0
Porpoise (Phocoenoides dalli)
Photo source: Wikimedia Commons, Susan E. Adams
License: CC BY-SA 2.0
Primate
Photo source: Wikimedia Commons, Hans Hillewaert
License: CC BY-SA 3.0
Rabbit (Leporidae)
Photo source: Wikimedia Commons, Marko Knuutila
License: CC BY 2.0
Raccoon (Procyon lotor)
Photo source: Wikimedia Commons, Jerzy Strzelecki
License: CC BY-SA 3.0
Rat (Rattus)
Photo source: Wikimedia Commons, Hans-Jorg Hellwig
License: CC BY-SA 3.0
Reindeer (Rangifer tarandus)
Photo source: Wikimedia Commons, Nattfodd
License: CC BY-SA 3.0
Rhinoceros (Rhinocerotidae)
Photo source: Wikimedia Commons, Derek Keates
License: CC BY 2.0
Sea lion (Otariidae)
Photo source: Wikimedia Commons, Brian M. Hunt
License: CC BY-SA 3.0
Seal (Pinniped)
Photo source: Wikimedia Commons, Charles J Sharp
License: CC BY-SA 4.0
Sheep (Ovis aries)
Photo source: Wikimedia Commons, Luis Miguel Bugallo Sanchez
License: CC BY-SA 3.0
Shrew (Soricidae)
Photo source: Wikimedia Commons, Salix and Polandeze
License: CC BY 2.0
Sloth (Folivora)
Photo source: Wikimedia Commons, Dinorvan Fanhaimpork
License: CC BY-SA 4.0
Skunk (Mephitis mephitis)
Photo source: Wikimedia Commons, Skeeze
License: CC0 1.0
Squirrel (Sciuridae)
Photo source: Wikimedia Commons, Yathin S. Krishnappa
License: CC BY-SA 3.0
Tapir (Tapiridae)
Photo source: Wikimedia Commons, Petr Hamernik
License: CC BY-SA 4.0
Tiger (Panthera tigris)
Photo source: Wikimedia Commons, John and Karen Hollingsworth
Walrus (Odobenus rosmarus)
Photo source: Wikimedia Commons, Ansgar Walk
License: CC BY-SA 3.0
Weasel (Mustela)
Photo source: Wikimedia Commons, Keven Law
License: CC BY-SA 2.0
Whale
Photo source: Wikimedia Commons, NOAA
Wildebeest (Connochaetes taurinus)
Photo source: Wikimedia Commons, Muhammad Mahdi Karim
Wolf (Canis lupus)
Photo source: Wikimedia Commons, Mas3cf
License: CC BY-SA 4.0
Wombat (Vombatidae)
Photo source: Wikimedia Commons, Dmitry Brant
License: CC BY-SA 4.0
Zebra (Equus zebra, Equus grevyi, Equus quagga)
Photo source: Wikimedia Commons, Berard DUPONT
License: CC BY-SA 2.0