Difference between revisions of "Armadillo" - New World Encyclopedia

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{{otheruses}}
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{{Taxobox
 
{{Taxobox
 
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| image = armadillo.jpg
 
| image = armadillo.jpg
 
| image_width = 200px
 
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| image_caption = [[Nine-banded Armadillo]]
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| image_caption = [[Nine-banded armadillo]]
 
| regnum = [[Animal]]ia
 
| regnum = [[Animal]]ia
 
| phylum = [[Chordate|Chordata]]
 
| phylum = [[Chordate|Chordata]]
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| superordo = [[Xenarthra]]
 
| superordo = [[Xenarthra]]
 
| ordo = '''Cingulata'''
 
| ordo = '''Cingulata'''
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| ordo_authority = [[Johann Karl Wilhelm Illiger|Illiger]], [[1811]]
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| ordo_authority = [[Johann Karl Wilhelm Illiger|Illiger]], 1811
 
| familia = '''Dasypodidae'''
 
| familia = '''Dasypodidae'''
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| familia_authority = [[John Edward Gray|Gray]], 1821
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| familia_authority = [[John Edward Gray|Gray]], 1821  
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| subdivision_ranks = [[Genus|Genera]]
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| subdivision_ranks = [[Family (biology)|Families]]
 
| subdivision =  
 
| subdivision =  
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* ''[[Dasypus]]''
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* [[Pampatheriidae]] (prehistoric)
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* ''[[Calyptophractus]]''
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* [[Glyptodontidae]] (prehistoric)
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* ''[[Chaetophractus]]''
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* '''Dasypodidae'''
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* ''[[Chlamyphorus]]''
 
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* ''[[Euphractus]]''
 
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* ''[[Zaedyus]]''
 
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* ''[[Cabassous]]''
 
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* ''[[Priodontes]]''
 
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* ''[[Tolypeutes]]''
 
 
}}
 
}}
  
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'''Armadillos''' are many of several small [[placenta]]l [[mammal]]s of the family '''Dasypodidae''', mostly known for having a bony [[armor]] shell. Their average size is about 75 [[centimeter]]s (30 inches), including tail. All species are native to the [[Americas]], where they inhabit a variety of environments. In the United States, the sole resident armadillo is the 9-banded armadillo ''(Dasypus novemcinctus)'', which is most common in the central southern states, particularly [[Texas]].
+
'''Armadillo''' is the common name for any of the small, [[placenta]]l, [[Old World]] [[mammal]]s comprising the family '''Dasypodidae''' and characterized by a bony [[Armor (zoology)|armor]] shell. There are approximately ten extant (living) [[genus|genera]] of armadillo and around 20 extant [[species]], some of which are distinguished by the number of bands on their armor. Armadillo also is used for members of the order '''Cingulata''' (previously Edentata) within which Dasypodidae is placed.
 +
{{toc}}
 +
Armadillos provide some unique values for humans. For one, armadillos are often used in the study of [[leprosy]], since they are among the few known non-human animal species that can contract the disease systemically. The nine-banded armadillo, ''Dasypus novemcinctus,'' also serves science through the fact that four identical quadruplets are born in each litter, providing a good subject for scientific, behavioral, or medical tests that need consistent biological and genetic makeup in the test subjects. Armadillos also add to the wonder of nature for humans, including the propensity of some to roll themselves into a tight ball when threatened.
 +
 
 +
==Overview==
 +
 
 +
Dasypodidae is the only surviving [[family (biology)|family]] in the [[order (biology)|order]] '''Cingulata''', which also includes extinct families. Cingulata is part of the superorder Xenarthra, which also includes the [[anteater]]s and [[sloth]]s. In the past, these families were classified together with the [[pangolin]]s and [[aardvark]] as the order Edentata, meaning toothless, because the members do not have front incisor teeth or molars, or have poorly-developed molars. It was subsequently realized that Edentata was [[polyphyletic]]—that it contained unrelated families and was thus invalid by [[cladistic]] standards. [[Aardvarks]] and pangolins are now placed in individual orders. The name ''Xenarthra'' means "strange joints," and was chosen because their [[vertebra]]l joints are unlike those of any other mammals.  
 +
 
 +
All species of armadillo are native to the [[Americas]], where they inhabit a variety of environments. In the [[United States]], the sole resident armadillo is the [[nine-banded armadillo]] ''(Dasypus novemcinctus),'' which is most common in the central southernmost states, particularly [[Texas]].
 +
 
 +
''Armadillo'' is [[Spanish language|Spanish]] for "little armored one," referring to their outer skin that looks like armor.
  
−
Dasypodidae is the only family in the order '''Cingulata'''. Until as recently as 1995 the family was placed in the order [[Xenarthra]], along with the [[anteater]]s and [[sloth]]s. There are several species of armadillo, some of which are distinguished by how many bands they have on their armor. The nine-banded form can not roll itself into a ball. They mainly run away or burrow from predators.
+
==Description==
  
−
==Habitat and Physiology==
+
Armadillos are short-legged mammals, covered by armor-like jointed plates made up of bone or horny material, separated by flexible tissue. The smallest armadillo, the pink fairy armadillo or pichiciego ''(Chlamyphorus truncatus),'' found in [[Argentina]], is approximately 90-115 millimeters (3.5-4.5 inches) long excluding the tail. The giant armadillo or tatou ''(Priodontes maximus)'' is the largest species of armadillo, with adults typically weighing around 27 kg (59 lbs) when full grown and a typical length of 895 millimeters (35 inches), of which a third to two-fifths is likely to be accounted for by the tail.
−
They are prolific diggers, and many species use their sharp claws to dig for food such as [[grub]]s and/or to dig dens. The 9-banded armadillo prefers to build burrows in moist soil near the creeks, streams, and [[arroyo (creek)|arroyos]] near which it generally lives and feeds. The diet of armadillo species varies, but consists mainly of [[insect]]s, grubs, and other [[invertebrate]]s. Some species, however, are almost entirely termite/ant specialists.
 
  
−
Nine-banded armadillos can not roll into a ball to escape predators! Armadillos have poor vision but are not blind.
+
Armadillos are prolific diggers, and many species use their sharp claws to dig for food such as [[grub]]s, and to dig dens. The nine-banded armadillo prefers to build [[burrow]]s in moist soil near the creeks, streams, and [[arroyo (creek)|arroyos]] near which it lives and feeds. The diet of different armadillo species varies, but consists mainly of [[insect]]s, grubs, and other [[invertebrate]]s. Some species, however, are almost entirely formicivorous (feeding mainly on ants).
−
The armor is formed by plates of dermal bone covered in small, overlapping , epidermal scales called "[[scute]]s". This armor-like skin would appear to be the main defense of many armadillos, though, in fact, most flee predators by running and/or digging rather than relying on their armor. Armadillos have short legs but can move quickly. They can also hold their breath and walk on the bottom a lake or any body of water for 6 mins.  Only the South American three-banded armadillos (''[[Tolypeutes]]'') tend to rely heavily on their armor. When threatened by a [[predator]], ''Tolypeutes'' species will frequently roll up into a ball. Other armadillo species cannot roll up because they have too many plates to curl. Instead, other armadillos will sometimes escape predators by running into thorny brush, relying on their armor to protect them from the thorns. The North American [[Nine-banded Armadillo]] tends to jump straight in the air when surprised, and consequently often smacks itself into the undercarriage of cars passing over it.
 
  
−
==Armadillos and Science==
+
Armadillos have poor vision, but are not blind.
−
Armadillos are often used in the study of [[leprosy]], since they, along with [[mangabey]] [[monkeys]], [[rabbits]], and [[Mouse|mice]] (on their footpads), are one of the few known non-human animal species that can contract the disease systemically. They are particularly susceptible due to their unusually low body temperature, which is hospitable to the leprosy [[bacterium]] (''[[Mycobacterium leprae]]'').  
 
  
−
The Nine-banded Armadillo also serves science through its unusual reproductive system, in which four identical quadruplets (all the same sex) are born in each clutch. Because they are always identical, the group of four young provides good subjects for scientific, behavioral, or medical tests that need consistent biological and genetic makeup in the test subjects. This phenomenon of multiple identical birth, called [[polyembryony]], only manifests in the genus ''[[Dasypus]]'', and not all armadillos as is commonly believed.
+
The armor is formed by plates of dermal bone covered in small, overlapping epidermal scales called "[[scute]]s." This armor-like skin appears to be the main defense of many armadillos, although most escape predators by fleeing (often into thorny patches, from which their armor protects them) or digging to safety. Only the [[South America]]n three-banded armadillos ''([[Tolypeutes]])'' rely heavily on their armor for protection. When threatened by a [[predator]], ''Tolypeutes'' species frequently roll up into a ball. (Other armadillo species cannot roll up because they have too many plates.) The North American nine-banded armadillo tends to jump straight in the air when surprised, and consequently often collides with the undercarriage or fenders of passing vehicles (LOC 2007).
  
−
==Armadillos and Humans==
+
Armadillos have short legs but can move quickly, and have the ability to remain underwater for as long as six minutes. Because of the weight of its armor, an armadillo will sink in water unless it inflates its stomach with air, which often doubles its size (Portillo 1999).
−
The armadillo was, over some resistance, made the state small mammal of Texas[http://www.shgresources.com/tx/symbols/smallmammal/] where it is considered a pest, and usually seen flattened on the roadside. In Maine, it is illegal to own an armadillo.
 
  
−
Armadillos can be kept as pets, although they require moist ground in which to dig and catch insects. They are difficult to domesticate fully.
+
Armadillos use their claws for digging and finding food, as well as for making their homes in burrows. They dig their burrows with their claws, only making a single corridor where they  themselves fit.
  
 
==Classification==
 
==Classification==
−
Dasypodidae is the only family in the order '''Cingulata'''. Until as recently as 1995 the family was placed in the order [[Xenarthra]], along with the [[anteater]]s and [[sloth]]s. There are several species of armadillo, some of which are distinguished by how many bands they have on their armor. The nine-banded form can not roll itself into a ball. They mainly run away or burrow from predators.
+
'''Order CINGULATA'''
 +
* †'''Family [[Pampatheriidae]]''': giant armadillos
 +
* †'''Family [[Glyptodontidae]]''': glyptodonts
 +
** Genus †''[[Glyptodon]]''
 +
** Genus †''[[Doedicurus]]''
 +
** Genus †''[[Hoplophorus]]''
 +
** Genus †''[[Panochthus]]''
 +
** Genus †''[[Plaxhaplous]]''
 +
* '''Family [[Dasypodidae]]''': armadillos
 +
** Subfamily [[Dasypodinae]]
 +
*** Genus ''[[Dasypus]]''
 +
****[[Nine-banded Armadillo]] or Long-nosed Armadillo, ''Dasypus novemcinctus''
 +
****[[Seven-banded Armadillo]], ''Dasypus septemcinctus''
 +
****[[Southern Long-nosed Armadillo]], ''Dasypus hybridus''
 +
****[[Llanos Long-nosed Armadillo]], ''Dasypus sabanicola''
 +
****[[Great Long-nosed Armadillo]], ''Dasypus kappleri''
 +
****[[Hairy Long-nosed Armadillo]], ''Dasypus pilosus''
 +
****†[[Beautiful Armadillo]], ''Dasypus bellus''
 +
** Subfamily [[Euphractinae]]
 +
*** Genus ''[[Calyptophractus]]''
 +
**** [[Greater Fairy Armadillo]], ''Calyptophractus retusus''
 +
*** Genus ''[[Chaetophractus]]''
 +
****[[Screaming Hairy Armadillo]], ''Chaetophractus vellerosus''
 +
****[[Big Hairy Armadillo]], ''Chaetophractus villosus''
 +
****[[Andean Hairy Armadillo]], ''Chaetophractus nationi''
 +
***Genus †''[[Peltephilus]]''
 +
**** Horned Armadillo, ''Peltephilus ferox''
 +
[[Image:Guertelmaus-drawing.jpg|thumb|right|200px|[[Pink Fairy Armadillo]], ''Chlamyphorus truncatus'']]
 +
*** Genus ''[[Chlamyphorus]]''
 +
****[[Pink Fairy Armadillo]], ''Chlamyphorus truncatus''
 +
*** Genus ''[[Euphractus]]''
 +
****[[Six-banded Armadillo]], ''Euphractus sexcinctus''
 +
*** Genus ''[[Zaedyus]]''
 +
****[[Pichi]], ''Zaedyus pichiy''
 +
** Subfamily [[Tolypeutinae]]
 +
*** Genus ''[[Cabassous]]''
 +
****[[Northern Naked-tailed Armadillo]], ''Cabassous centralis''
 +
****[[Chacoan Naked-tailed Armadillo]], ''Cabassous chacoensis''
 +
****[[Southern Naked-tailed Armadillo]], ''Cabassous unicinctus''
 +
****[[Greater Naked-tailed Armadillo]], ''Cabassous tatouay''
 +
*** Genus ''[[Priodontes]]''
 +
****[[Giant Armadillo]], ''Priodontes maximus''
 +
*** Genus ''[[Tolypeutes]]''
 +
****[[Southern Three-banded Armadillo]], ''Tolypeutes matacus''
 +
****[[Brazilian Three-banded Armadillo]], ''Tolypeutes tricinctus''
  
−
'''Order [[Cingulata]]'''
+
† indicates extinct taxon
−
* '''Family [[Pampatheriidae]]''': giant armadillos (extinct)
+
 
−
* '''Family [[Glyptodontidae]]''' (extinct)
+
==Armadillos and humans==
−
** ''[[Glyptodon]]'' (extinct)
+
Armadillos are often used in the study of [[leprosy]], since they, along with [[mangabey]] [[monkey]]s, [[rabbit]]s and [[Mouse|mice]] (on their footpads), are among the few known non-human animal species that can contract the disease systemically. They are particularly susceptible due to their unusually low body temperature, which is hospitable to the [[Mycobacterium leprae|leprosy bacterium]].
−
* '''Family [[Dasypodidae]]''': armadillos
+
 
−
**[[Pink Fairy Armadillo]], ''Chlamyphorus truncatus''
+
The [[nine-banded armadillo]], ''Dasypus novemcinctus,'' also serves [[science]] through its unusual reproductive system, in which four identical quadruplets are born in each litter (Schaefer and Hostetler). Because they are always identical, the group of four young provides a good subject for scientific, behavioral, or medical tests that need consistent biological and genetic makeup in the test subjects. This phenomenon of multiple identical birth, called [[polyembryony]], only manifests in the genus ''[[Dasypus]]'' and not in all armadillos, as is commonly believed.
−
**[[Pichiciego]], ''Chlamyphorus retusus''
 
−
**[[Northern Naked-tailed Armadillo]], ''Cabassous centralis''
 
−
**[[Chacoan Naked-tailed Armadillo]], ''Cabassous chacoensis''
 
−
**[[Southern Naked-tailed Armadillo]], ''Cabassous unicinctus''
 
−
**[[Greater Naked-tailed Armadillo]], ''Cabassous tatouay''
 
−
**[[Little Hairy armadillo]] or Screaming Hairy armadillo, ''Chaetophractus vellerosus''
 
−
**[[Hairy Armadillo]], ''Chaetophractus villosus''
 
−
**[[Andean Hairy Armadillo]]''Chaetophractus nationi''
 
−
**[[Nine-banded Armadillo]] or Long-nosed Armadillo, ''Dasypus novemcinctus''
 
−
**[[Seven-banded Armadillo]], ''Dasypus septemcinctus''
 
−
**[[Southern Long-nosed Armadillo]], ''Dasypus hybridus''
 
−
**[[Llanos Long-nosed Armadillo]], ''Dasypus sabanicola''
 
−
**[[Great Long-nosed Armadillo]], ''Dasypus kappleri''
 
−
**[[Hairy Long-nosed Armadillo]], ''Dasypus pilosus''
 
−
**[[Six-banded Armadillo]] or Yellow Armadillo, ''Euphractus sexcinctus''
 
−
**[[Giant armadillo]], ''Priodontes maximus''
 
−
**[[Southern Three-banded Armadillo]], ''Tolypeutes matacus''
 
−
**[[Brazilian Three-banded Armadillo]], ''Tolypeutes tricinctus''
 
−
**[[Pichi]] or Dwarf Armadillo, ''Zaedyus pichiy''
 
  
−
==Trivia==
+
Armadillos (mainly ''Dasypus'') make common roadkill due to their habit of jumping to about [[fender (vehicle)|fender]] height when startled (such as by an oncoming car).  
−
*In the [[Joe R. Lansdale]] novel ''Captains Outrageous'', a [[Texan]] armadillo named Bob is kept as a pet by Leonard Pine, one of the central characters.
 
−
*A stuffed armadillo plays an important role in [[John Irving]]'s novel, "[[A Prayer for Owen Meany]]"
 
−
*Because of the weight of its armor, an armadillo will sink in water unless it inflates its stomach with air, which often doubles its size.[http://www.flex.net/~lonestar/armadillo.htm] 
 
−
*A number of towns in Texas hold beauty pageants for armadillos.  [http://www.oaklaketrails.com/armadillo/armadillo.htm]
 
−
*''[[Glyptotherium texanum]]'' (extinct) was a close cousin of the armadillo, living in the tropical and subtropical regions of Florida, South Carolina, and Texas. It had a six-foot-long carapace and weighed in at approximately 2,000 pounds (1 ton).[http://www.amnh.org/science/biodiversity/extinction/Resources/Bestiary/Xenarthra.html]
 
−
*[[Bonobo]]s and armadillos are the only mammals other than humans that engage in intercourse in the [[missionary position]] (face-to-face).
 
−
*German POWs in Texas would often refer to the armadillo as "panzer swine".
 
−
*Recorded to be the animal with the most dreams in sleep (that is, with the most observed [[REM]] sleep).
 
−
*Armadilos are one of a small number of animals other than humans that can get leprosy.
 
−
*Surprisingly, armadillos are very agile in the water and have been known to swim for up to two miles without rest.
 
−
*Armadillo is Spanish for “little armored one.”
 
  
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==External links==
+
Wildlife enthusiasts are using the northward march of the nine-banded armadillo as an opportunity to educate others about the animals, which can be a burrowing nuisance to homeowners, cemetery caretakers, and golf course superintendents (Schaefer and Hostetler).
−
*[http://seabed.nationalgeographic.com/splat_ngx_pathfinder/templates/output/articles/gallery.tmpl?DB_NUM_PARAMS=2&DB_PARAM_0=0503&DB_PARAM_1=2 Photographs of armadillo rolling into a ball]
 
−
*[http://www.msu.edu/~nixonjos/armadillo/ Armadillo Online!]
 
  
−
A humor site, Lost Armadillos in Heat, featuring armadillo kissing!
+
During the [[Great Depression]] in the United States, the nine-banded armadillo was known as "Hoover Hog" by down-on-their luck Americans who had to eat them instead of the "chicken in every pot" [[Herbert Hoover]] had promised as President (Smith 2001). Earlier, German settlers in [[Texas]] would often refer to the armadillo as ''Panzerschwein'' ("armored pig").
  
−
http://www.lostarmadillosinheat.com
+
The nine-banded armadillo was, with some resistance, made the state small mammal of Texas, where it is considered a pest and is often seen dead on the roadside. They first forayed into Texas across the [[Rio Grande]] from Mexico in the 1800s, eventually spreading across the southeast United States (Smith 2001).  
  
 
==References==
 
==References==
 +
 
*{{MSW3 Gardner|pages=94-99}}
 
*{{MSW3 Gardner|pages=94-99}}
  
 +
* Library of Congress (LOC). 2007. [http://www.loc.gov/rr/scitech/mysteries/armadillo.html How high can a nine-banded armadillo jump?]. ''Library of Congress''. Retrieved September 14, 2007.
 +
 +
* Portillo, T. 1999. [http://www.flex.net/~lonestar/armadillo.htm Nine-banded armadillo]. ''Window on the Woodlands.'' Retrieved September 14, 2007.
 +
 +
* Schaefer, J. M., and M. E. Hostetler. n.d. [http://edis.ifas.ufl.edu/UW082 The nine-banded armadillo ''(Dasypus novemcinctus)'']. ''University of Florida, Institute of Food and Agricultural Sciences (UF/IFAS)''. Retrieved September 14, 2007.
 +
 +
* Smith, L. L. 2001. [http://www.tsha.utexas.edu/handbook/online/articles/AA/tca2.html Armadillo]. ''The Handbook of Texas Online''. Retrieved September 14, 2007.
 +
 +
==External links==
 +
All links retrieved August 15, 2023.
 +
 +
*[http://armadillo-online.org/ Armadillo Online].
 +
<br>
 
{{mammals}}
 
{{mammals}}
  
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{{credit|61194775}}
 
  
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{{credit|Armadillo|157946680|Xenarthra|153443760|Pink_Fairy_Armadillo|155486446|Giant_Armadillo|154601701}}
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[[Category:Animals]]
 
[[Category:Life sciences]]
 
[[Category:Life sciences]]
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[[Category:Mammals]]

Latest revision as of 03:47, 15 August 2023


Armadillos
Nine-banded armadillo
Nine-banded armadillo
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Superorder: Xenarthra
Order: Cingulata
Illiger, 1811
Family: Dasypodidae
Gray, 1821
Families
  • Pampatheriidae (prehistoric)
  • Glyptodontidae (prehistoric)
  • Dasypodidae

Armadillo is the common name for any of the small, placental, Old World mammals comprising the family Dasypodidae and characterized by a bony armor shell. There are approximately ten extant (living) genera of armadillo and around 20 extant species, some of which are distinguished by the number of bands on their armor. Armadillo also is used for members of the order Cingulata (previously Edentata) within which Dasypodidae is placed.

Armadillos provide some unique values for humans. For one, armadillos are often used in the study of leprosy, since they are among the few known non-human animal species that can contract the disease systemically. The nine-banded armadillo, Dasypus novemcinctus, also serves science through the fact that four identical quadruplets are born in each litter, providing a good subject for scientific, behavioral, or medical tests that need consistent biological and genetic makeup in the test subjects. Armadillos also add to the wonder of nature for humans, including the propensity of some to roll themselves into a tight ball when threatened.

Overview

Dasypodidae is the only surviving family in the order Cingulata, which also includes extinct families. Cingulata is part of the superorder Xenarthra, which also includes the anteaters and sloths. In the past, these families were classified together with the pangolins and aardvark as the order Edentata, meaning toothless, because the members do not have front incisor teeth or molars, or have poorly-developed molars. It was subsequently realized that Edentata was polyphyletic—that it contained unrelated families and was thus invalid by cladistic standards. Aardvarks and pangolins are now placed in individual orders. The name Xenarthra means "strange joints," and was chosen because their vertebral joints are unlike those of any other mammals.

All species of armadillo are native to the Americas, where they inhabit a variety of environments. In the United States, the sole resident armadillo is the nine-banded armadillo (Dasypus novemcinctus), which is most common in the central southernmost states, particularly Texas.

Armadillo is Spanish for "little armored one," referring to their outer skin that looks like armor.

Description

Armadillos are short-legged mammals, covered by armor-like jointed plates made up of bone or horny material, separated by flexible tissue. The smallest armadillo, the pink fairy armadillo or pichiciego (Chlamyphorus truncatus), found in Argentina, is approximately 90-115 millimeters (3.5-4.5 inches) long excluding the tail. The giant armadillo or tatou (Priodontes maximus) is the largest species of armadillo, with adults typically weighing around 27 kg (59 lbs) when full grown and a typical length of 895 millimeters (35 inches), of which a third to two-fifths is likely to be accounted for by the tail.

Armadillos are prolific diggers, and many species use their sharp claws to dig for food such as grubs, and to dig dens. The nine-banded armadillo prefers to build burrows in moist soil near the creeks, streams, and arroyos near which it lives and feeds. The diet of different armadillo species varies, but consists mainly of insects, grubs, and other invertebrates. Some species, however, are almost entirely formicivorous (feeding mainly on ants).

Armadillos have poor vision, but are not blind.

The armor is formed by plates of dermal bone covered in small, overlapping epidermal scales called "scutes." This armor-like skin appears to be the main defense of many armadillos, although most escape predators by fleeing (often into thorny patches, from which their armor protects them) or digging to safety. Only the South American three-banded armadillos (Tolypeutes) rely heavily on their armor for protection. When threatened by a predator, Tolypeutes species frequently roll up into a ball. (Other armadillo species cannot roll up because they have too many plates.) The North American nine-banded armadillo tends to jump straight in the air when surprised, and consequently often collides with the undercarriage or fenders of passing vehicles (LOC 2007).

Armadillos have short legs but can move quickly, and have the ability to remain underwater for as long as six minutes. Because of the weight of its armor, an armadillo will sink in water unless it inflates its stomach with air, which often doubles its size (Portillo 1999).

Armadillos use their claws for digging and finding food, as well as for making their homes in burrows. They dig their burrows with their claws, only making a single corridor where they themselves fit.

Classification

Order CINGULATA

  • †Family Pampatheriidae: giant armadillos
  • †Family Glyptodontidae: glyptodonts
    • Genus †Glyptodon
    • Genus †Doedicurus
    • Genus †Hoplophorus
    • Genus †Panochthus
    • Genus †Plaxhaplous
  • Family Dasypodidae: armadillos
    • Subfamily Dasypodinae
      • Genus Dasypus
        • Nine-banded Armadillo or Long-nosed Armadillo, Dasypus novemcinctus
        • Seven-banded Armadillo, Dasypus septemcinctus
        • Southern Long-nosed Armadillo, Dasypus hybridus
        • Llanos Long-nosed Armadillo, Dasypus sabanicola
        • Great Long-nosed Armadillo, Dasypus kappleri
        • Hairy Long-nosed Armadillo, Dasypus pilosus
        • †Beautiful Armadillo, Dasypus bellus
    • Subfamily Euphractinae
      • Genus Calyptophractus
        • Greater Fairy Armadillo, Calyptophractus retusus
      • Genus Chaetophractus
        • Screaming Hairy Armadillo, Chaetophractus vellerosus
        • Big Hairy Armadillo, Chaetophractus villosus
        • Andean Hairy Armadillo, Chaetophractus nationi
      • Genus †Peltephilus
        • Horned Armadillo, Peltephilus ferox
Pink Fairy Armadillo, Chlamyphorus truncatus
      • Genus Chlamyphorus
        • Pink Fairy Armadillo, Chlamyphorus truncatus
      • Genus Euphractus
        • Six-banded Armadillo, Euphractus sexcinctus
      • Genus Zaedyus
        • Pichi, Zaedyus pichiy
    • Subfamily Tolypeutinae
      • Genus Cabassous
        • Northern Naked-tailed Armadillo, Cabassous centralis
        • Chacoan Naked-tailed Armadillo, Cabassous chacoensis
        • Southern Naked-tailed Armadillo, Cabassous unicinctus
        • Greater Naked-tailed Armadillo, Cabassous tatouay
      • Genus Priodontes
        • Giant Armadillo, Priodontes maximus
      • Genus Tolypeutes
        • Southern Three-banded Armadillo, Tolypeutes matacus
        • Brazilian Three-banded Armadillo, Tolypeutes tricinctus

† indicates extinct taxon

Armadillos and humans

Armadillos are often used in the study of leprosy, since they, along with mangabey monkeys, rabbits and mice (on their footpads), are among the few known non-human animal species that can contract the disease systemically. They are particularly susceptible due to their unusually low body temperature, which is hospitable to the leprosy bacterium.

The nine-banded armadillo, Dasypus novemcinctus, also serves science through its unusual reproductive system, in which four identical quadruplets are born in each litter (Schaefer and Hostetler). Because they are always identical, the group of four young provides a good subject for scientific, behavioral, or medical tests that need consistent biological and genetic makeup in the test subjects. This phenomenon of multiple identical birth, called polyembryony, only manifests in the genus Dasypus and not in all armadillos, as is commonly believed.

Armadillos (mainly Dasypus) make common roadkill due to their habit of jumping to about fender height when startled (such as by an oncoming car).

Wildlife enthusiasts are using the northward march of the nine-banded armadillo as an opportunity to educate others about the animals, which can be a burrowing nuisance to homeowners, cemetery caretakers, and golf course superintendents (Schaefer and Hostetler).

During the Great Depression in the United States, the nine-banded armadillo was known as "Hoover Hog" by down-on-their luck Americans who had to eat them instead of the "chicken in every pot" Herbert Hoover had promised as President (Smith 2001). Earlier, German settlers in Texas would often refer to the armadillo as Panzerschwein ("armored pig").

The nine-banded armadillo was, with some resistance, made the state small mammal of Texas, where it is considered a pest and is often seen dead on the roadside. They first forayed into Texas across the Rio Grande from Mexico in the 1800s, eventually spreading across the southeast United States (Smith 2001).

References
ISBN links support NWE through referral fees

  • A. Gardner, "Order *," pages 94-99 in D. E. Wilson and D. M. Reeder, eds. Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd edition. (Baltimore: Johns Hopkins University Press, 2005). ISBN 0801882214.
  • Smith, L. L. 2001. Armadillo. The Handbook of Texas Online. Retrieved September 14, 2007.

External links

All links retrieved August 15, 2023.


Mammals
Monotremata (platypus, echidnas)

Marsupialia: | Paucituberculata (shrew opossums) | Didelphimorphia (opossums) | Microbiotheria | Notoryctemorphia (marsupial moles) | Dasyuromorphia (quolls and dunnarts) | Peramelemorphia (bilbies, bandicoots) | Diprotodontia (kangaroos and relatives)

Placentalia: Cingulata (armadillos) | Pilosa (anteaters, sloths) | Afrosoricida (tenrecs, golden moles) | Macroscelidea (elephant shrews) | Tubulidentata (aardvark) | Hyracoidea (hyraxes) | Proboscidea (elephants) | Sirenia (dugongs, manatees) | Soricomorpha (shrews, moles) | Erinaceomorpha (hedgehogs and relatives) Chiroptera (bats) | Pholidota (pangolins)| Carnivora | Perissodactyla (odd-toed ungulates) | Artiodactyla (even-toed ungulates) | Cetacea (whales, dolphins) | Rodentia (rodents) | Lagomorpha (rabbits and relatives) | Scandentia (treeshrews) | Dermoptera (colugos) | Primates |


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