List of mammals of Mexico

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Template:Short description This is a list of the native wild mammal species recorded in Mexico. As of September 2014, there were 536 mammalian species or subspecies listed. Based on IUCN data, Mexico has 23% more noncetacean mammal species than the U.S. and Canada combined in an area only 10% as large, or a species density over 12 times that of its northern neighbors.Template:Refn Mexico's high mammal biodiversity is in part a reflection of the wide array of biomes present over its latitudinal, climatic and altitudinal ranges, from lowland tropical rainforest to temperate desert to montane forest to alpine tundra. The general increase in terrestrial biodiversity moving towards the equator[1] is another important factor in the comparison. Mexico includes much of the Mesoamerican and Madrean pine-oak woodlands biodiversity hotspots. From a biogeographic standpoint, most of Mexico is linked to the rest of North America as part of the Nearctic realm. However, the lowlands of southern Mexico are linked with Central America and South America as part of the Neotropical realm. Extensive mixing of Nearctic and Neotropical mammal species commenced only three million years ago, when the formation of the Isthmus of Panama ended South America's long period of isolation and precipitated the Great American Interchange. Twenty of Mexico's extant nonflying species (opossums, armadillos, anteaters, monkeys and caviomorph rodents) are of South American origin. Most of the megafauna that formerly inhabited the region became extinct at the end of the Pleistocene about 10,000 years ago, shortly after the arrival of the first humans. Increasing alteration and destruction of natural habitats by expanding human populations during the last several centuries is causing further attrition of the region's biodiversity, as exemplified by the "hotspot" designations (by definition, such areas have lost over 70% of their primary vegetation).

The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature; those on the left are used here, those in the second column in some other articles:

EX Template:IUCN status Extinct No reasonable doubt that the last individual has died.
EW Template:IUCN status Extinct in the wild Known only to survive in captivity or as a naturalized population well outside its historic range.
CR Template:IUCN status Critically endangered The species is in imminent danger of extinction in the wild.
EN Template:IUCN status Endangered The species is facing a very high risk of extinction in the wild.
VU Template:IUCN status Vulnerable The species is facing a high risk of extinction in the wild.
NT Template:IUCN status Near threatened The species does not qualify as being at high risk of extinction but is likely to do so in the future.
LC Template:IUCN status Least concern The species is not currently at risk of extinction in the wild.
DD Template:IUCN status Data deficient There is inadequate information to assess the risk of extinction for this species.
NE Template:IUCN status Not evaluated The conservation status of the species has not been studied.

Of the listed taxa, 7 are extinct, 1 (not recognized by the IUCN) is possibly extinct, 30 are critically endangered, 46 are endangered, 26 are vulnerable, and 23 are near threatened.Template:Refn These status tags were most recently updated in April 2011. Six of the extinct or possibly extinct taxa and 11 of the critically endangered taxa are insular (all but two of these are rodents); another 13 of the critically endangered species (all rodents or shrews) are montane. The only critically endangered species that are neither rodents nor shrews are the Cozumel Island raccoon and the vaquita. The vaquita population estimate has dropped below 100 as of 2014 and it is regarded as being in imminent danger of extinction.[2][3]

Subclass: Theria

Infraclass: Metatheria

File:Central American woolly opossum (Caluromys derbianus) male.jpg
Derby's woolly opossum
File:Rabipelao2.jpg
Common opossum
File:Cuica verdadeira2.jpg
Gray four-eyed opossum
File:Tlacuatzin canescens.jpg
Grayish mouse opossum

Order: Didelphimorphia (common opossums)

Didelphimorphia is the order of common opossums of the Western Hemisphere. Opossums probably diverged from the basic South American marsupials in the late Cretaceous or early Paleocene. They are small to medium-sized marsupials, about the size of a large house cat, with a long snout and prehensile tail.

Infraclass: Eutheria

Order: Sirenia (manatees and dugongs)

File:Manatee with calf.PD.jpg
West Indian manatees

Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands. All four species are endangered. They evolved about 50 million years ago, and their closest living relatives are elephants. Manatees are the only extant afrotherians in the Americas. However, a number proboscid species, some of which survived until the arrival of Paleo-Indians, once inhabited the region. Mammoths, mastodons and gomphotheres all formerly lived in Mexico.[4][5]

Order: Cingulata (armadillos)

File:Nine-banded Armadillo.jpg
Nine-banded armadillo

Armadillos are small mammals with a bony armored shell. Two of twenty-one extant species are present in Mexico; the remainder are only found in South America, where they originated. Their much larger relatives, the pampatheres and glyptodonts, once lived in North and South America but went extinct following the appearance of humans.

Order: Pilosa (anteaters, sloths and tamanduas)

File:Silky Anteater cropped.jpg
Silky anteater
File:Tamandua mexicana 2.jpg
Northern tamandua

The order Pilosa is extant only in the Americas and includes the anteaters, sloths, and tamanduas. Their ancestral home is South America. Numerous ground sloths, some of which reached the size of elephants, were once present in both North and South America, as well as on the Antilles, but all went extinct following the arrival of humans.

Order: Primates

File:Walking Alouatta palliata, Costa Rica.JPG
Mantled howler
File:Spider monkey -Belize Zoo-8b.jpg
Geoffroy's spider monkey

The order Primates includes the lemurs, monkeys, and apes, with the latter category including humans. It is divided into four main groupings: strepsirrhines, tarsiers, monkeys of the New World (parvorder Platyrrhini), and monkeys and apes of the Old World. Mexico's 2 genera of nonhuman primates compares to 6 in Central America, 20 in South America, 15 in Madagascar, 23 in Africa and 19 in Asia. Mexican and Central American monkeys are recent immigrants from South America, where their ancestors arrived after rafting over from Africa roughly 25 million years ago.[6] Southeastern Mexico is the northernmost limit of the distribution of New World monkeys, which are restricted to tropical rainforest habitat.

Order: Rodentia (rodents)

File:Urson Erethizon dorsatum 1.jpg
North American porcupine
File:Mexican-hairy-porcupine-1.jpg
Mexican hairy dwarf porcupine
File:Dasyprocta punctata (Mexico).jpg
Central American agouti
File:Cuniculus paca.jpg
Lowland paca
File:Beaver Yearling Grooming Alhambra Creek 2008.jpg
North American beaver
File:Southern Flying Squirrel-27527-1.jpg
Southern flying squirrel
File:Aberts squirrel.jpg
Abert's squirrel
File:WesternGraySquirrel1.jpg
Western gray squirrel
File:Sciurus niger (on fence).jpg
Fox squirrel
File:Variegated Squirre 2.jpg
Variegated squirrel
File:Yucatan gray squirrel.jpg
Yucatan squirrel
File:Antelope-squirrel-phoenix-arizona.jpg
Harris's antelope squirrel
File:White Tailed Squirrel.jpg
White-tailed antelope squirrel
File:Cynomys ludovicianus -Paignton Zoo, Devon, England-8a.jpg
Black-tailed prairie dog
File:CA Ground Squirrel at burrow.jpg
California ground squirrel
File:Spermophilus tereticaudus Phoenix 1.jpg
Round-tailed ground squirrel
File:Spermophilus variegatus.jpg
Rock squirrel
File:Cliff chipmunk.jpg
Cliff chipmunk
File:Texas Pocket Gopher.jpg
Texas pocket gopher
File:Botta's Pocket Gopher (Thomomys bottae).jpg
Botta's pocket gopher
File:Kangaroo-rat.jpg
Ord's kangaroo rat
File:Chaetodipus baileyi.jpg
Bailey's pocket mouse
File:Spiny Pocket Mouse.jpg
Spiny pocket mouse
File:Perognathus flavus.jpg
Silky pocket mouse
File:California Vole (Microtus californicus).jpg
California vole
File:Baby meadow vole.jpg
Meadow vole
File:Muskrat swimming Ottawa.jpg
Muskrat
File:White-throated woodrat.jpg
White-throated woodrat
File:Peromyscus eremicus.jpg
Cactus mouse
File:White.footed.mouse.with.sucklings.jpg
White-footed mice
File:DiGangi-Deermouse.jpg
Deer mouse
File:Pinyon mouse.jpg
Pinyon mouse
File:Oryzomys palustris in vegetation.jpg
Marsh rice rat
File:Yellownosedcottonrat.jpg
Yellow-nosed cotton rat

Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small, although the capybara can weigh up to Script error: No such module "convert".. According to the IUCN listing, Mexico has more rodent species (236 as of April 2011) than any other country in the world (Brazil is second with 222). Of Mexico's rodents, 2% are caviomorphs, 14.5% are sciurids, 25.5% are castorimorphs and 58% are cricetids. This distribution is fairly similar to that of the remainder of North America (although sciurids are relatively twice as abundant to the north, at the expense of cricetids), but is very different from that of South America, where the corresponding figures are 36%, 3%, 1% and 60%. Of Mexico's cricetids, 17% are sigmodontine, while the figure for South America is 99.5%.Template:Refn Mexico's caviomorphs are recent immigrants from South America, where their ancestors washed ashore after rafting across the Atlantic from Africa about 40–45 million years ago.[6][7] Conversely, South America's sciurids, castorimorphs and cricetids are recent immigrants from Central America (with sigmodontines getting a head start on the others).

Order: Lagomorpha (lagomorphs)

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Volcano rabbit
File:Sylvilagus bachmani 01035t.JPG
Brush rabbit
File:Jackrabbit2 crop.JPG
Black-tailed jackrabbit

The lagomorphs comprise two families, Leporidae (hares and rabbits), and Ochotonidae (pikas). Though they can resemble rodents, and were classified as a superfamily in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two. The endangered volcano rabbit of the Trans-Mexican Volcanic Belt is the world's second smallest rabbit. In North America, pikas are not found south of southern California and northern New Mexico.

Order: Eulipotyphla (shrews, hedgehogs, moles, and solenodons)

File:DesertShrew23.jpg
Crawford's gray shrew
File:ScalopusAquaticus.jpg
Eastern mole

Eulipotyphlans are insectivorous mammals. Shrews and solenodons closely resemble mice, hedgehogs carry spines, while moles are stout-bodied burrowers. In the Americas, moles are not present south of the northernmost tier of Mexican states, where they are rare.

Order: Chiroptera (bats)

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Southwestern myotis
File:Fringed Myotis.jpg
Fringed myotis
File:Pallid Bat (Antrozous pallidus).jpg
Pallid bat
File:Big-eared-townsend-fledermaus.jpg
Townsend's big-eared bat
File:Flickr - Furryscaly - Countertop Bat.jpg
Big brown bat
File:C-red-bat.jpg
Eastern red bat
File:Lasurius cinereus.jpg
Hoary bat
File:Nycticeius humeralis Evening bat.JPG
Evening bat
File:Western pipistrelle.jpg
Western pipistrelle
File:Costa-Rica-Bat-IMG 8315b.jpg
Greater or lesser sac-winged bat
File:Sbilineata.jpg
Greater sac-winged bat
File:Mormoops megalophylla.JPG
Ghost-faced bat
File:Pteronotus parnellii.jpg
Parnell's mustached bat
File:California leaf-nosed bat.jpg
California leaf-nosed bat
File:Phyllostomus discolor2b.jpg
Pale spear-nosed bat
File:Long-Tongued Bat at hummingbird feeder cropped.jpg
Mexican long-tongued bat
File:Leptonycteris nivalis.jpg
Greater long-nosed bat
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Lesser long-nosed bat
File:Artibeus jamaicensis1.jpg
Jamaican fruit bat
File:Artibeus phaeotis4.jpg
Pygmy fruit-eating bat
File:Centurio senex.jpg
Wrinkle-faced bats
File:Chiroderma salvini2.jpg
Salvin's big-eyed bat
File:Uroderma bilobatum, Gamboa, Panama 2.jpg
Tent-making bats
File:Desmodusrotundus.jpg
Common vampire bat
File:Dyoungi.jpg
White-winged vampire bat
File:Hairy-legged vampire bat, Diphylla ecaudata (closeup).jpg
Hairy-legged vampire bat

The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight. Bat species account for about 20% of all mammals.

Order: Carnivora (carnivorans)

File:Margaykat Leopardus wiedii.jpg
Margay
File:Puma yaguarondi2.jpg
Jaguarundi
File:Jaguar full.jpg
Jaguar
File:Mexican Wolf 2 yfb-edit 2.jpg
Mexican wolf
File:Blacky.jpg
American black bear
File:Tayra3 (cropped).jpg
Tayra
File:Greater grison.jpg
Greater grison
File:Cozumel Raccoon2.jpg
Cozumel raccoon
File:Coati Nasua narica Side 2212px.jpg
White-nosed coati
File:Arctocephalus townsendi.jpg
Guadalupe fur seal
File:Alpha seals.jpg
Northern elephant seal
File:Cms-newyorkzoologicalsociety1910.jpg
Caribbean monk seal

There are over 260 species of carnivorans, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition. Mexico has more native mephitids than any other country, with two thirds of extant species being present. Only Costa Rica and Panama have more procyonid species (one more) than Mexico (it is tied with Colombia in this respect). Large extinct carnivorans that lived in the area prior to the coming of humans include the saber-toothed cat Smilodon fatalis, the scimitar cat Homotherium serum, American lions, American cheetahs, dire wolves and short-faced bears.

Order: Perissodactyla (odd-toed ungulates)

File:Bairds Tapir.jpg
Baird's tapir

The odd-toed ungulates are browsing and grazing mammals. They are usually large to very large, and have relatively simple stomachs and a large middle toe. Tapirids were more widespread before humans appeared, formerly being present in temperate North America as well as the tropical regions they are found in today. Native equids once lived in the region, having evolved in North America over a period of 50 million years, but died out around the time of the first arrival of humans, along with at least one ungulate of South American origin, the notoungulate Mixotoxodon. Sequencing of collagen from a fossil of one recently extinct notoungulate has indicated that this order was closer to the perissodactyls than any extant mammal order.[10]

Order: Artiodactyla (even-toed ungulates and cetaceans)

File:Collared peccary02 - melbourne zoo.jpg
Collared peccary
File:Mule Deer Trotting.jpg
Mule deer
File:Gabelbock fws 1b.jpg
Pronghorn
File:American bison k5680-1.jpg
Plains bison
File:Bighorn di Tiziano Lombardi.jpg
Desert bighorn sheep

The even-toed ungulates are ungulates whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in perissodactyls. There are about 220 noncetacean artiodactyl species, including many that are of great economic importance to humans. All of Mexico's extant ungulates are of Nearctic origin. Prior to the arrival of humans, camelids, which evolved in North America, also lived in the region, as did additional antilocaprids (e.g., Capromeryx minor).

Order: Cetacea (whales, dolphins and porpoises)

File:HumpbackWhaleBreaching.jpg
Humpback whale
File:Ballena gris adulta con su ballenato.jpg
Gray whale
File:Mother and baby sperm whale.jpg
Sperm whales
File:Vaquita6 Olson NOAA.jpg
Vaquitas
File:Atlantic spotted dolphin (Stenella frontalis) NOAA.jpg
Atlantic spotted dolphin
File:Delphinus delphis with calf.jpg
Short-beaked common dolphins
File:Pacific white-sided dolphins (Lagenorhynchus obliquidens) NOAA.jpg
Pacific white-sided dolphins
File:Anim1749 - Flickr - NOAA Photo Library.jpg
Northern right whale dolphins
File:Risso's dolphin.jpg
Risso's dolphin
File:Peponocephala electra Mayotte (cropped).jpg
Melon-headed whale
File:Killerwhales jumping.jpg
Orcas
File:Ballenas Tenerife.jpg
Short-finned pilot whales

The order Cetacea includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater. Their closest extant relatives are the hippos, which are artiodactyls, from which cetaceans descended; cetaceans are thus also artiodactyls. Lagoons on the coast of Baja California Sur provide calving grounds for the eastern Pacific population of gray whales. The vaquita of the northern Gulf of California is the world's smallest and most endangered cetacean.

See also

Notes

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References

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  11. IUCN SSC Antelope Specialist Group. 2016. Boselaphus tragocamelus (errata version published in 2017). The IUCN Red List of Threatened Species 2016: e.T2893A115064758. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T2893A50182076.en. Accessed on 18 April 2023.
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