Nine-banded armadillo

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Nine-banded armadillo
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Cingulata
Family: Dasypodidae
Subfamily: Dasypodinae
Genus: Dasypus
Species: D. novemcinctus
Binomial name
Dasypus novemcinctus
Linnaeus, 1758
Nine-banded armadillo range

The nine-banded armadillo (Dasypus novemcinctus), or the nine-banded, long-nosed armadillo, is a species of armadillo. The nine-banded armadillo is an insectivorous animal. Ants, termites, and other small invertebrates make up most of its diet. The armadillo can jump 3–4 feet (91–122 cm) in the air when scared.[2]

Range[change | change source]

The nine-banded armadillo is spreading more far out in both the north and east of the United States. It crossed the Rio Grande from Mexico in the late 19th century. At the same time, it was introduced in Florida by humans. By 1995, the species was found in Texas, Oklahoma, Louisiana, Arkansas, Mississippi, Alabama, and Florida, and recently seen as far north as southern Nebraska, Illinois, and Indiana.[3] The main reason of this fast expansion is because the species have few or no natural predators in the United States. It is also because Americans do not hunt or eat the armadillo. In late 2009, the state of North Carolina considered a hunting season for armadillo to slow them down.[4][5] Outside the United States, the nine-banded armadillo is in Central and South America and northern Argentina and Uruguay.

Diet[change | change source]

Nine-banded armadillos are mostly insectivores. They find their meals by pushing their snouts into soil and digging. They dig up grubs, beetles, ants, termites, and worms. They sometimes also eat amphibians, small reptiles, fungi, and carrion.

Behavior[change | change source]

Armadillo burrow
in Nuevo León, Mexico

Nine-banded armadillos do not live in groups. They are nocturnal,[6] which means that they are lively at night instead of the day. The burrows they make are about 8 inches (20 cm) wide, 7 feet (2.1 m) deep, and 25 feet (7.6 m) long.[7] Armadillos usually mark their territory.[7] The armadillo can jump 3–4 feet (91–122 cm) in the air when scared.[2] This may be dangerous on roads, because it could get hit by a car.[8]

Reproduction[change | change source]

Mating is usually done from July to August in the Northern Hemisphere and November to January in the Southern Hemisphere. A single egg is fertilized. Then it splits into four identical embryos, each which makes its own placenta. The nine-banded armadillo gives birth to genetically identical quadruplets.[9][10][11][12]

After birth, the quadruplets remain in the burrow, drinking the mother's milk for about three months.[7] Then they begin to hunt for their meals with the mother. After six months to a year, they leave.[13]

A single female can produce up to 56 young over the course of her life.[14]

References[change | change source]

  1. IUCN SSC Edentate Specialist Group (2008). Dasypus novemcinctus. 2008 IUCN Red List of Threatened Species. IUCN 2008. Retrieved on 30 December 2008.
  2. 2.0 2.1 "How high can a nine-banded armadillo jump?". Everyday Mysteries. Library of Congress. http://www.loc.gov/rr/scitech/mysteries/armadillo.html.
  3. Armadillo expansion, Armadillo Online, http://www.msu.edu/~nixonjos/armadillo/expansion.html, retrieved 7 June 2010
  4. Steve Windham (Chairman) (PDF), Public Hearings applying to 2010-2011 Fishing, Hunting and Trapping Seasons, North Carolina Wildlife Resources Commission, http://www.ncwildlife.org/Regs/documents/Public_Hearing_Book.pdf, retrieved 7 June 2010
  5. Jefferson Weaver (9 December 2009). "New regulations feature armored possums". The News Reporter. http://www.whiteville.com/articles/2009/12/10/news/doc4b1d199773d64464304059.txt. Retrieved 8 June 2010.
  6. "Armadillo Observation". https://www.msu.edu/~nixonjos/armadillo/observation.html. Retrieved 2012-06-11.
  7. 7.0 7.1 7.2 "Texas State Animal - Nine-banded Armadillo". http://www.buzzle.com/articles/texas-state-animal-nine-banded-armadillo.html. Retrieved 2012-06-11.
  8. "Nine-Banded Armadillo - Dasypus novemcinctus - NatureWorks". http://www.nhptv.org/natureworks/armadillo.htm. Retrieved 2012-06-11.
  9. "polyembryony (biology) -- Britannica Online Encyclopedia". http://www.britannica.com/EBchecked/topic/468475/polyembryony#ref160478. Retrieved 2012-06-11.
  10. "The Nine-banded Armadillo (Dasypus novemcinctus)". Edis.ifas.ufl.edu. http://edis.ifas.ufl.edu/UW082. Retrieved 2009-12-17.
  11. Loughry, W.J; Prodohl, Paulo A; McDonough, Colleen M; & Avise, John C (May–June 1998), "Polyembryony in Armadillos", American Scientist 86: 274–279, http://www.valdosta.edu/~jloughry/Reprints/AmSci.pdf
  12. Hamlett, G.W.D (September 1933), "Polyembryony in the Armadillo: genetic or physiological?", The Quarterly Review of Biology 8 (3): 348–358, http://links.jstor.org/sici?sici=0033-5770(193309)8%3A3%3C348%3APITAGO%3E2.0.CO%3B2-Q
  13. Feldhamer, George A. et al (2007), Mammalogy: adaptation, diversity, ecology, Baltimore, Maryland: Johns Hopkins University Press, ISBN 978-0-8018-8695-9, http://books.google.com.au/books?id=udCnKce9hfoC&printsec=frontcover&dq=Mammalogy&hl=en&ei=x38NTKicEsuXcYO91JUO&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCsQ6AEwAA#v=onepage&q&f=false, retrieved 7 June 2010
  14. "Nine Banded Armadillo - facts, diet, habitat, reproduction, life span, predators and pictures". http://www.animalspot.net/nine-banded-armadillo.html. Retrieved 2012-06-11.