According to the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of nat ...

(IUCN), 65 mammal

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

are

threatened Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensa ...

or nearly threatened with

extinction Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

. The IUCN has classified each of these species into one of four

conservation status The conservation status of a group of organisms (for instance, a species) indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservatio ...

es:

near threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify f ...

, vulnerable ,

endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and in ...

, and critically endangered . Also included in the list are 5 species that became extinct since the 1500s.

Order
Artiodactyla The even-toed ungulates (Artiodactyla , ) are ungulates—hoofed animals—which bear weight equally on two (an even number) of their five toes: the third and fourth. The other three toes are either present, absent, vestigial, or pointing poster ...
(even-toed ungulates and cetaceans)

Family Balaenidae (bowhead and right whales) *

North Atlantic right whale The North Atlantic right whale (''Eubalaena glacialis'') is a baleen whale, one of three right whale species belonging to the genus '' Eubalaena'', all of which were formerly classified as a single species. Because of their docile nature, their s ...

(''Eubalaena glacialis'') *

North Pacific right whale The North Pacific right whale (''Eubalaena japonica'') is a very large, thickset baleen whale species that is extremely rare and endangered. The Northeast Pacific population, which summers in the southeastern Bering Sea and Gulf of Alaska, may ...

(''Eubalaena japonica'') ** Northeast Pacific subpopulation Family Balaenopteridae (rorquals) * Sei whale (''Balaenoptera borealis'') *

Blue whale The blue whale (''Balaenoptera musculus'') is a marine mammal and a baleen whale. Reaching a maximum confirmed length of and weighing up to , it is the largest animal known to have ever existed. The blue whale's long and slender body can ...

(''Balaenoptera musculus'') *

Fin whale The fin whale (''Balaenoptera physalus''), also known as finback whale or common rorqual and formerly known as herring whale or razorback whale, is a cetacean belonging to the parvorder of baleen whales. It is the second-longest species of ce ...

(''Balaenoptera physalus'') *

Humpback whale The humpback whale (''Megaptera novaeangliae'') is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus ''Megaptera''. Adults range in length from and weigh up to . The hu ...

(''Megaptera novaeangliae'') **

Oceania Oceania (, , ) is a geographical region that includes Australasia, Melanesia, Micronesia, and Polynesia. Spanning the Eastern and Western hemispheres, Oceania is estimated to have a land area of and a population of around 44.5 million ...

subpopulation Family

Bovidae The Bovidae comprise the biological family of cloven-hoofed, ruminant mammals that includes cattle, bison, buffalo, antelopes, and caprines. A member of this family is called a bovid. With 143 extant species and 300 known extinct species, t ...

(bovids) *

Aoudad The Barbary sheep (''Ammotragus lervia''), also known as aoudad (pronounced �ɑʊdæd is a species of caprine native to rocky mountains in North Africa. While this is the only species in genus ''Ammotragus'', six subspecies have been describ ...

(''Ammotragus lervia'') ( introduced from

North Africa North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in ...

) *

Blackbuck The blackbuck (''Antilope cervicapra''), also known as the Indian antelope, is an antelope native to India and Nepal. It inhabits grassy plains and lightly forested areas with perennial water sources. It stands up to high at the shoulder. Ma ...

(''Antilope cervicapra'') (introduced from

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

) *

American bison The American bison (''Bison bison'') is a species of bison native to North America. Sometimes colloquially referred to as American buffalo or simply Bubalina, buffalo (a different clade of bovine), it is one of two extant species of bison, alongs ...

(''Bison bison'') Family

Cervidae Deer or true deer are hoofed ruminant mammals forming the family Cervidae. The two main groups of deer are the Cervinae, including the muntjac, the elk (wapiti), the red deer, and the fallow deer; and the Capreolinae, including the reind ...

(deer) *

Hog deer ''Axis'' is a genus of deer occurring in South and Southeast Asia. As presently defined by most authorities, four species are placed in the genus. Three of the four species are called hog deer. The genus name is a word mentioned in Pliny the Eld ...

(''Axis porcinus'') (introduced from

South Asia South Asia is the southern subregion of Asia, which is defined in both geographical Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth descr ...

) *

Reindeer Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 sub ...

(''Rangifer tarandus'') *

Philippine deer The Philippine deer (''Rusa marianna''), also known as the Philippine sambar or Philippine brown deer, is a vulnerable deer species endemic to the Philippines. It was first described from introduced populations in the Mariana Islands, hence t ...

(''Rusa marianna'') (introduced from

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

) * Sambar deer (''Rusa unicolor'') (introduced from South Asia) Family

Monodontidae The cetacean family Monodontidae comprises two living whale species, the narwhal and the beluga whale and at least four extinct species, known from the fossil record. Beluga and Narwhal are native to coastal regions and pack ice around the Arctic ...

(narwhal and beluga whale) *

Beluga whale The beluga whale () (''Delphinapterus leucas'') is an Arctic and sub-Arctic cetacean. It is one of two members of the family Monodontidae, along with the narwhal, and the only member of the genus ''Delphinapterus''. It is also known as the ...

(''Delphinapterus leucas'') **

Cook Inlet Cook Inlet ( tfn, Tikahtnu; Sugpiaq: ''Cungaaciq'') stretches from the Gulf of Alaska to Anchorage in south-central Alaska. Cook Inlet branches into the Knik Arm and Turnagain Arm at its northern end, almost surrounding Anchorage. On its so ...

subpopulation * Narwhal (''Monodon monoceros'') (Occasional

vagrant Vagrancy is the condition of homelessness without regular employment or income. Vagrants (also known as bums, vagabonds, rogues, tramps or drifters) usually live in poverty and support themselves by begging, scavenging, petty theft, temporar ...

from

Arctic Ocean The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, a ...

north of

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

Greenland Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland i ...

, and

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...

) Family Physeteridae (sperm whale) * Sperm whale (''Physeter macrocephalus'')

Order Carnivora (carnivorans)

Family Canidae (canids) * Red wolf (''Canis rufus'') *

Island fox The island fox (''Urocyon littoralis'') is a small fox that is endemic to six of the eight Channel Islands of California. There are six subspecies, each unique to the island it lives on, reflecting its evolutionary history. They are generally d ...

(''Urocyon littoralis'') Family Felidae (cats) * Jaguar (''Panthera onca'') Family

Mephitidae Mephitidae is a family of mammals comprising the skunks and stink badgers. They are noted for the great development of their anal scent glands, which they use to deter predators. Skunks were formerly classified as a subfamily of the Mustelidae ...

(skunks) *

Eastern spotted skunk The eastern spotted skunk (''Spilogale putorius'') is a small, relatively slender skunk found in North America, throughout the eastern United States and in small areas of Canada and Mexico. This small skunk is more weasel-like in body shape tha ...

(''Spilogale putorius'') Family

Mustelidae The Mustelidae (; from Latin ''mustela'', weasel) are a family of carnivorous mammals, including weasels, badgers, otters, ferrets, martens, minks and wolverines, among others. Mustelids () are a diverse group and form the largest family in th ...

(mustelids) * Sea otter (''Enhydra lutris'') * Black-footed ferret (''Mustela nigripes'') *

Sea mink The sea mink (''Neogale macrodon'') is a recently extinct species of mink that lived on the eastern coast of North America around the Gulf of Maine on the New England seaboard. It was most closely related to the American mink (''Neogale vison' ...

(''Neogale macrodon'') since 1860s Family

Odobenidae Odobenidae is a family of pinnipeds. The only living species is the walrus (''Odobenus rosmarus''). In the past, however, the group was much more diverse, and includes more than a dozen fossil genera. Taxonomy All genera, except ''Odobenus'', ...

(walrus) *

Walrus The walrus (''Odobenus rosmarus'') is a large flippered marine mammal with a discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere. The walrus is the only living species in the fami ...

(''Odobenus rosmarus'') Family Otariidae (eared seals) *

Northern fur seal The northern fur seal (''Callorhinus ursinus'') is an eared seal found along the north Pacific Ocean, the Bering Sea, and the Sea of Okhotsk. It is the largest member of the fur seal subfamily (Arctocephalinae) and the only living species in t ...

(''Callorhinus ursinus'') * Steller sea lion (''Eumetopias jubatus'') ** Western Steller sea lion (''E. j. jubatus'') Family Phocidae (earless seals) *

Hooded seal The hooded seal (''Cystophora cristata'') is a large phocid found only in the central and western North Atlantic, ranging from Svalbard in the east to the Gulf of St. Lawrence in the west. The seals are typically silver-grey or white in color, w ...

(''Cystophora cristata'') (Occasional vagrant from Canada, Greenland, and

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and the ...

) *

Hawaiian monk seal The Hawaiian monk seal (''Neomonachus schauinslandi'') is an endangered species of earless seal in the family Phocidae that is endemic to the Hawaiian Islands. The Hawaiian monk seal is one of two extant monk seal species; the other is the ...

(''Neomonachus schauinslandi'') * Caribbean monk seal (''Neomonachus tropicalis'') since 1950s Family

Ursidae Bears are carnivoran mammals of the family Ursidae. They are classified as caniforms, or doglike carnivorans. Although only eight species of bears are extant, they are widespread, appearing in a wide variety of habitats throughout the Nort ...

(bears) * Polar bear (''Ursus maritimus'')

Order
Chiroptera Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most bir ...
(bats)

Family

Emballonuridae Emballonuridae is a family of microbats, many of which are referred to as sac-winged or sheath-tailed bats. They are widely distributed in tropical and subtropical regions around the world. The earliest fossil records are from the Eocene. Descr ...

(sac-winged bats) *

Pacific sheath-tailed bat The Pacific sheath-tailed bat or Polynesian sheath-tailed bat (''Emballonura semicaudata'') is a species of sac-winged bat in the family Emballonuridae found in American Samoa, Fiji, Guam, Micronesia, Palau, Samoa (where it is called ''pe'a vai ...

(''Emballonura semicaudata'') Family Molossidae (free-tailed bats) * Florida bonneted bat (''Eumops floridanus'') Family Phyllostomidae (leaf-nosed bats) *

Mexican long-tongued bat The Mexican long-tongued bat (''Choeronycteris mexicana'') is a species of bat in the family Phyllostomidae. It is the only species within the genus ''Choeronycteris''. The species is found in El Salvador, Guatemala, Honduras, Mexico, and th ...

(''Choeronycteris mexicana'') * Greater long-nosed bat (''Leptonycteris nivalis'') * Lesser long-nosed bat (''Leptonycteris yerbabuenae'') *

Red fruit bat The red fruit bat or red fig-eating bat (''Stenoderma rufum'') is a species of bat in the family Phyllostomidae, in the monotypic genus ''Stenoderma''.Gannon, M.R., Rodríguez-Durán, M., Kurta, A., and Willig, M.R. Stenoderma rufum Desmarest, R ...

(''Stenoderma rufum'') Family Pteropodidae (megabats) *

Mariana fruit bat The Mariana fruit bat (''Pteropus mariannus''), also known as the Mariana flying fox, and the ''fanihi'' in Chamorro, is a megabat found only in the Mariana Islands and Ulithi (an atoll in the Caroline Islands). Habitat loss has driven it to enda ...

(''Pteropus mariannus'') *

Samoa flying fox The Samoa flying fox or Samoan flying fox (''Pteropus samoensis'') is a species of flying fox in the family Pteropodidae. It is found in American Samoa, Fiji, and Samoa (where it is known as ''pe'a'' and ''pe'a vao''). Its natural habitat is sub ...

(''Pteropus samoensis'') * Guam flying fox (''Pteropus tokudae'') since 1960s Family

Vespertilionidae Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat famili ...

(vesper bats) * Gray bat (''Myotis grisescens'') *

Indiana bat The Indiana bat (''Myotis sodalis'') is a medium-sized mouse-eared bat native to North America. It lives primarily in Southern and Midwestern U.S. states and is listed as an endangered species. The Indiana bat is grey, black, or chestnut in colo ...

(''Myotis sodalis'')

Order
Eulipotyphla Eulipotyphla (, which means "truly fat and blind") is an order of mammals suggested by molecular methods of phylogenetic reconstruction, which includes the laurasiatherian members of the now-invalid polyphyletic order Lipotyphla, but not the ...
(hedgehogs, shrews, moles, and solenodons)

Family

Nesophontidae ''Nesophontes'', sometimes called West Indies shrews, is the sole genus of the extinct, monotypic mammal family Nesophontidae in the order Eulipotyphla. These animals were small insectivores, about 5 to 15 cm long, with a long slender snout ...

(West Indies shrews) *

Puerto Rican nesophontes The Puerto Rican nesophontes (''Nesophontes edithae''), or Puerto Rican shrew, is an extinct eulipotyphlan endemic to Puerto Rico. It is believed that the animal was never observed by Europeans. Contemporary fossils with indigenous artefacts a ...

(''Nesophontes edithae'') since 1500s Family Soricidae (shrews) *

Pribilof Island shrew The Pribilof Island shrew (''Sorex pribilofensis'') is a species of mammal in the family Soricidae. It is found only on Alaska's Pribilof Islands The Pribilof Islands (formerly the Northern Fur Seal Islands; ale, Amiq, russian: Остро ...

(''Sorex pribilofensis'')

Order
Lagomorpha The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families: the Leporidae (hares and rabbits) and the Ochotonidae ( pikas). The name of the order is derived from the Ancient Greek ''lagos'' (λαγ ...
(lagomorphs)

Family

Leporidae Leporidae is the family of rabbits and hares, containing over 60 species of extant mammals in all. The Latin word ''Leporidae'' means "those that resemble ''lepus''" (hare). Together with the pikas, the Leporidae constitute the mammalian order ...

(rabbits and hares) * Columbia Basin pygmy rabbit (''Brachylagus idahoensis'') * White-sided jackrabbit (''Lepus callotis'') *

European rabbit The European rabbit (''Oryctolagus cuniculus'') or coney is a species of rabbit native to the Iberian Peninsula (including Spain, Portugal, and southwestern France), western France, and the northern Atlas Mountains in northwest Africa. It has b ...

(''Oryctolagus cuniculus'') (introduced from

Western Europe Western Europe is the western region of Europe. The region's countries and territories vary depending on context. The concept of "the West" appeared in Europe in juxtaposition to "the East" and originally applied to the ancient Mediterranean ...

) *

Appalachian cottontail The Appalachian cottontail (''Sylvilagus obscurus'') is a species of cottontail rabbit in the family Leporidae. It is a rare species found in the upland areas of the eastern United States. Taxonomy The species was only recognized as separate f ...

(''Sylvilagus obscurus'') * Robust cottontail (''Sylvilagus robustus'') * New England cottontail (''Sylvilagus transitionalis'')

Order
Rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...
ia (rodents)

Family

Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and h ...

(true hamsters, voles, lemmings, and New World rats and mice) *

Red tree vole The red tree vole (''Arborimus longicaudus'') is a rodent of the Pacific Northwest, found in the US states of Oregon and California. They were formerly known as ''Phenacomys longicaudus'' and have also been called the red tree mouse. Descriptio ...

(''Arborimus longicaudus'') * California red tree mouse (''Arborimus pomo'') * Beach vole (''Microtus breweri'') *

Allegheny woodrat The Allegheny woodrat (''Neotoma magister''), is a species of " pack rat" in the genus ''Neotoma''. Once believed to be a subspecies of the eastern woodrat (''Neotoma floridana''), extensive DNA analysis has proven it to be a distinct species. ...

(''Neotoma magister'') * Florida mouse (''Podomys floridanus'') *

Salt marsh harvest mouse The salt marsh harvest mouse (''Reithrodontomys raviventris''), also known as the red-bellied harvest mouse, is an endangered rodent endemic to the San Francisco Bay Area salt marshes in California. The two distinct subspecies are both endangere ...

(''Reithrodontomys raviventris'') Family Geomyidae (gophers) *

Desert pocket gopher The desert pocket gopher (''Geomys arenarius'') is a species of rodent in the family Geomyidae. It is found in the state of Chihuahua in Mexico and in Texas and New Mexico in the United States. Description ''Geomys arenarius'' is a medium si ...

(''Geomys arenarius'') Family

Heteromyidae Heteromyidae is a family of rodents consisting of kangaroo rats, kangaroo mice, pocket mice and spiny pocket mice. Most heteromyids live in complex burrows within the deserts and grasslands of western North America, though species within th ...

(heteromyids) *

Texas kangaroo rat The Texas kangaroo rat (''Dipodomys elator'') is a rodent of the family Heteromyidae. It is found in Texas and Oklahoma in the United States, where it often lives in association with brush species, like mesquite and lotebush, growing in areas wi ...

(''Dipodomys elator'') *

Giant kangaroo rat The giant kangaroo rat (''Dipodomys ingens'') is an endangered species of heteromyid rodent endemic to California. Description The giant kangaroo rat, is the largest of over 20 species of kangaroo rats, which are small members of the rodent f ...

(''Dipodomys ingens'') *

Fresno kangaroo rat The Fresno kangaroo rat or San Joaquin kangaroo rat (''Dipodomys nitratoides'') is a species of rodent in the family Heteromyidae. It is endemic to areas within and near the San Joaquin Valley of California in the United States. Habitat destruct ...

(''Dipodomys nitratoides'') *

Banner-tailed kangaroo rat The banner-tailed kangaroo rat (''Dipodomys spectabilis'') is a species of rodent in the family Heteromyidae. It is found in arid environments in the southwestern United States and Mexico where it lives in a burrow by day and forages for seeds an ...

(''Dipodomys spectabilis'') *

Stephens's kangaroo rat Stephens's kangaroo rat (''Dipodomys stephensi'') is a species of rodent in the family Heteromyidae. It is endemic to the Southern California region of the United States, primarily in western Riverside County, California, Riverside County. The sp ...

(''Dipodomys stephensi'') * White-eared pocket mouse (''Perognathus alticolus'') Family

Sciuridae Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squ ...

(squirrels) * San Joaquin antelope squirrel (''Ammospermophilus nelsoni'') *

Utah prairie dog The Utah prairie dog (''Cynomys parvidens'') is the smallest species of prairie dog endemic to the south-central steppes of the American state of Utah. The species is listed in the IUCN Red List of Threatened Species with a status of Endangered. ...

(''Cynomys parvidens'') * Palmer's chipmunk (''Neotamias palmeri'') * Idaho ground squirrel (''Urocitellus brunneus'') *

Townsend's ground squirrel Townsend's ground squirrel (''Urocitellus townsendii'') is a species of rodent in the family Sciuridae. It is found in high desert shrublands in several areas of the United States. Distribution Townsend's ground squirrel is found in the Great Ba ...

(''Urocitellus townsendii'') * Washington ground squirrel (''Urocitellus washingtoni'') * Mohave ground squirrel (''Xerospermophilus mohavensis'')

Order
Sirenia The Sirenia (), commonly referred to as sea-cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The Sirenia currently comprise two distinct ...
(sea cows)

Family

Dugongidae Dugongidae is a family in the order of Sirenia. The family has one surviving species, the dugong (''Dugong dugon''), one recently extinct species, Steller's sea cow (''Hydrodamalis gigas''), and a number of extinct genera known from fossil r ...

(dugong and Steller's sea cow) * Steller's sea cow (''Hydrodamalis gigas'') since 1760s Family

Trichechidae Trichechidae is a family of sirenians that includes all living manatees and several extinct genera. Systematics TRICHECHIDAE *MiosireninaeM. Voss. 2014. On the invalidity of Halitherium schinzii Kaup, 1838 (Mammalia, Sirenia), with comments o ...

(manatees) *

West Indian manatee The West Indian manatee (''Trichechus manatus''), also known as the North American manatee, is a large, aquatic mammal native to warm coastal areas of the Caribbean, from the eastern US to northern Brazil. Living alone or in herds, it feeds on un ...

(''Trichechus manatus'') ** Florida manatee (''T. m. latirostris'') ** Antillean manatee (''T. m. manatus'')

References

{{threatened species Fauna of the United States by conservation status

* Mammals,United States *Threatened

Order Carnivora (carnivorans)

Order Chiroptera Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most bir ... (bats)

Order Lagomorpha The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families: the Leporidae (hares and rabbits) and the Ochotonidae ( pikas). The name of the order is derived from the Ancient Greek ''lagos'' (λαγ ... (lagomorphs)

Order Rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...ia (rodents)

Order Sirenia The Sirenia (), commonly referred to as sea-cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The Sirenia currently comprise two distinct ... (sea cows)

See also

References

Order
Chiroptera Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most bir ...
(bats)

Order
Lagomorpha The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families: the Leporidae (hares and rabbits) and the Ochotonidae ( pikas). The name of the order is derived from the Ancient Greek ''lagos'' (λαγ ...
(lagomorphs)

Order
Rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...
ia (rodents)

Order
Sirenia The Sirenia (), commonly referred to as sea-cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The Sirenia currently comprise two distinct ...
(sea cows)