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North American porcupine

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798:), the male of which may sometimes exceed a mass of 5.5 kg (12 lb). Fishers have two advantages that make them capable hunters of the porcupine. First, they are agile tree climbers, and may force a fleeing porcupine from a tree to the ground, where it is more vulnerable. There it will try to present its hindquarters and tail to the attacker, with the predator circling around and attempting to attack the prey. After repeated attacks, the porcupine eventually weakens, allowing the fisher to flip the porcupine over, rip open its underbelly, and consume its organs without exposing itself to the still dangerous quills. One study suggested that since male fishers are considerably larger than females (often weighing on average twice as much), only males are likely to hunt porcupines. It appears that female fishers usually favor prey such as 831:
male that comes along typically sits in the same tree below a female. If another male approaches, he may fight for the right to mate. Once a dominant male is successful, he approaches the female and uses a spray of his urine on the female. Only a few drops touch the female, but the chemical reaction allows the female to enter estrus fully. Once this is accomplished high in the tree, the mating process takes place on the ground. When porcupines are mating, they tighten their skin and hold their quills flat, so as not to injure each other. Mating may occur repeatedly until the female loses interest and climbs back into the tree.
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it can rely on its quills. An adult porcupine when attacked turns its rear to the predator. When approached, the porcupine can swing its tail at an attacker's face. Despite popular myth, the porcupine does not throw its quills. Instead, when a quill comes in contact with the attacker, it can easily penetrate and become embedded in its skin. Each quill contains microscopic barbs which allow it to stick into the flesh of an attacker. This strategy is successful against most attacks. With a face full of quills, an attacking creature often retreats. The porcupine's last line of defense is to climb a tree.
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to insulate their bodies during winter. The quills are normally flattened against the body and in this position are less easily dislodged. Porcupines do not throw their quills, but when threatened contract superficial muscles which cause the quills to stand up and out from their bodies. In this position they become easier to detach from the body, especially when the tail is swung toward an attacker. The barbs at the end of the spines lodge in the flesh of a victim and are difficult and painful to remove.
117: 823: 299: 910: 72: 569: 53: 899:. It is common throughout its range except in some U.S. states in the southeast part of its range. For example, it is listed as a species in need of conservation in Maryland. As of 1999, 15 remnant populations remain scattered throughout north-central Mexico. These live in riparian forests, mesquite scrubland, grasslands, and thorn forests. They are threatened by hunting and habitat loss. As of 1994, the animal was listed as an 94: 584:. The head-and-body length is 60 to 90 cm (2.0 to 3.0 ft), not counting a tail of 14.5 to 30 cm (5.7 to 11.8 in). The hind foot length is 7.5 to 9.1 cm (3.0 to 3.6 in). Weight can range from 3.5 to 18 kg (7.7 to 39.7 lb). Weight in adult females can average some 7 kg (15 lb) while 5 wild-caught males averaged 10.67 kg (23.5 lb). 722:, but sleep in and stay close to their dens in winter. The strength of the porcupine's defense has given it the ability to live a solitary life, unlike many herbivores, which must move in flocks or herds. Consequently, the porcupine has "an extraordinary ability to learn complex mazes and to remember them as much as a hundred days afterward". 839:) has a gestation period of just 44 days. North American porcupines give birth to a single young. At birth, they weigh about 450 g, which increases to nearly 1 kg after the first two weeks. They do not gain full adult weight until the end of the second summer about 4.5 kg. Their quills harden soon after birth. 805:
Another effective predator is the cougar. It does not avoid the quills so much as seek to avoid being impaled by too many of them. Some individuals have been found with dozens of quills embedded in their gums to no ill effect. It can climb trees, so its favorite method is to position itself below the
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in several modalities. It has a strong warning odor which it can increase when agitated. When threatened, an adult porcupine can bristle its quills, displaying a white stripe down its back, and use its teeth to make a warning, clacking sound. If the olfactory, visual, and auditory warnings fail, then
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The most distinguishing feature of the porcupine is its coat of quills. An adult porcupine has about 30,000 quills that cover all of its body except its underbelly, face, and feet. Quills are modified hairs formed into sharp, barbed, hollow spines. They are used primarily for defense, but also serve
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The porcupine possesses antibiotics in its skin which may help prevent infection when a porcupine falls out of a tree and is stuck with its own quills upon hitting the ground. Porcupines fall out of trees fairly often because they are highly tempted by the succulent buds and tender twigs at the ends
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Female porcupines are solitary for most of the year except during the fall when breeding season begins. At this time, they secrete a thick mucus which mixes with their urine. The resulting odor attracts males in the vicinity. Males that approach a female do not automatically begin mating. The first
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Female porcupines provide all parental care. For the first two weeks the young rely on their mother for sustenance. After this they learn to climb trees and start to forage. They continue to nurse for up to four months, which coincides with the fall mating season. They stay close to their mothers.
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Porcupines are infamous among backpackers and backpacking publications for their love of salt, especially eating road salt-covered boots left outside of tents overnight. They have a similar reputation among forestry workers of all types for trying to eat sweat-soaked gloves and wooden handles on
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During the summer, they eat twigs, roots, stems, berries, leaves, and other vegetation. Porcupines also eat certain insects and nuts. In the winter, they mainly eat conifer needles and tree bark. Porcupines are selective in their consumption; for example out of every 1,000 trees in the Catskill
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Mother porcupines do not defend their young, but have been known to care for them even after death. In one case, when a baby had fallen to its death from a tree, the mother came down and stayed by her offspring's side for hours waiting vainly for it to revive.
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The North American porcupine has a long gestation period relative to other rodents, an average of 202 days. By contrast, the North American beaver, which is comparable in size, has a gestation period of 128 days. The eastern grey squirrel
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are the only North American mammals that have strongly contrasting black-and-white coloration, because they are the only mammals that benefit from letting other animals know where and what they are in the dark of night.
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North American porcupines have a relatively long life expectancy, with some individuals reaching 30 years of age. Common causes of mortality include predation, starvation, falling out of a tree, and being run over by
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Mabille, GĂ©raldine; Descamps, SĂ©bastien; Berteaux, Dominique (March 11, 2010). "Predation as a probable mechanism relating winter weather to population dynamics in a North American porcupine population".
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because of the damage that they often inflict on trees and wooden and leather objects. Plywood is especially vulnerable because of the salts added during manufacture. They also often injure domestic
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period. They are thought to have migrated from Africa, ancestors of the Old World porcupines or Hystricidae or they originated based on a migration of the North American Paramyidae.
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was the only one to survive north of Mexico. No known fossils are attributed to hystricomorphs prior to the late Tertiary period. Some fossils, such as species from the family
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meaning thorns. Other colloquial names for the animal include quill pig. It is also referred to as the Canadian porcupine or common porcupine. The porcupine's scientific name,
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to decorate articles such as baskets and clothing. Porcupines are edible and were an important source of food, especially in winter, to the native peoples of Canada's
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Thermoregulatory responses of the North American porcupine (Erethizon dorsatum bruneri) to decreasing ambient temperature and increasing wind speed
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Porcupines are usually dark brown or black in color, with white highlights. They have a stocky body, a small face, short legs, and a short, thick
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Porcupines are nearsighted and slow-moving. They are mainly active at night (nocturnal); on summer days, they often rest in trees. They do not
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List, Rurik; Ceballos, Gerardo; Pacheco, JesĂșs (September 1999). "Status of the North American Porcupine (Erethizon dorsatum) in Mexico".
1313: 2970: 2955: 1264: 640:, goats, or some cheeses. The odor is generated by a patch of skin called the rosette, on the lower back where modified quills serve as 2751: 1341: 2772: 464:, show resemblance to the porcupine, but they are so primitive and generalized that they could be ancestors to all later rodents . 2798: 1153: 1142: 909: 2985: 2965: 2842: 2321: 2300: 2290: 2034: 1955: 1928: 1817: 1617:
Li, Guang; Roze, Uldis; Locke, David C. (December 1997). "Warning Odor of the North American Porcupine(Erethizon dorsatum)".
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The North American porcupine has specific behaviors to warn or defend against predators. The defense strategy is based on
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Predation as a probable mechanism relating winter weather to population dynamics in a North American porcupine population
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can be found in the midwest from Arkansas to Montana. The last three are found in the west. From south to north they are
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to warn away predators, which it can increase when agitated. The smell has been described as similar to strong human
580:. This species is the largest of the New World porcupines and is the second largest North American rodent, after the 1437: 1106: 2584: 2358: 2224: 1012: 2868: 2343: 242: 101: 1674:
The cost of a prickly diet: incidents of porcupine (Erethizon dorsatum) quills embedded in Wolverine (Gulo gulo)
1583: 1562: 2553: 1443: 410:, can be loosely translated as "the animal with the irritating back". Native American terms for it include the 1716:
Near‐Extinction of Porcupines by Mountain Lions and Consequences of Ecosystem Change in the Great Basin Desert
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Zielinski, W. J., Duncan, N. P., Farmer, E. C., Truex, R. L., Clevenger, A. P., & Barrett, R. H. (1999).
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Foraging response of Erethizon dorsatum and Lepus americanus to specialized and generalized predator scents
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are recognized. They are subdivided by different ranges across North America. By far the most common is
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the Atlantic from Africa to Brazil 30 million years ago, and then migrated to North America during the
1521:. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 116(3), 339-346. 116: 2146: 652:. Not present is the S-enantiomer which smells like coconut and is used in flavorings and perfumes. 2481: 1169:"A newly recognized family from the Horn of Africa, the Heterocephalidae (Rodentia: Ctenohystrica)" 2855: 1999: 1084: 1032: 2950: 2670: 1879:
Size‐Related Effects of Predation on Habitat Use and Behavior of Porcupines (Erethizon dorsatum)
1750: 2894: 2686: 2561: 2889: 2569: 2521: 2223:. Maryland Wildlife and Heritage Service Natural Heritage Program. April 2010. Archived from 1344:. The Natural Source: An Educator's Guide to South Dakota's Natural Resources. Archived from 1268: 896: 605: 353: 221: 2917: 444:
The North American porcupine migrated from South America, where all New World porcupines or
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Traumatic, degenerative, and developmental lesions in wolves and coyotes from Saskatchewan
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and mixed forested areas, but have adapted to harsh environments such as shrublands and
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appeared in North America shortly after the two continents joined together in the later
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porcupine and knock it to the ground, quickly dispatching it. Other predators, such as
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Life in a multi-predator environment: some considerations for anti-predatory vigilance
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is a masculine Latin noun; however it is in fact a Greek participle, not a Latin noun.
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Nitrogen and energy requirements of the North American porcupine (Erethizon dorsatum)
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Mountains, porcupines will only eat from 1-2 linden trees and one big-toothed aspen.
373: 365: 2272: 2172: 2080: 1646: 1249: 1210:"African origin of caviomorph rodents is indicated by incisor enamel microstructure" 1061: 500:(the prehensile-tailed porcupines) instead. The earliest uncontroversial fossils of 2578: 2545: 2068: 1983: 1634: 1578: 1407: 1398:
Wood, Albert E. (25 November 1949). "Porcupines, Paleogeography, and Parallelism".
1229: 1180: 1079: 1016: 788: 2373: 1798:. In Annales Zoologici Fennici (pp. 217-226). Finnish Zoological Publishing Board. 730: 649: 2876: 2709: 2489: 2311: 2024: 1945: 1918: 752: 581: 411: 2829: 1892:
Cougars (Puma concolor) Killed by North American Porcupines (Erethizon dorsatum)
2436: 2420: 2414: 517: 505: 487: 445: 188: 40: 2120: 2072: 1638: 1316:. Canadian Forestry Association. Archived from the original on March 18, 2006. 1233: 701: 2934: 2811: 2177: 1563:"A facilitated release mechanism for quills of the North American porcupine ( 1433: 1241: 1194: 1070: 880: 865: 826:
Porcupines prior to mating, with the female characteristically above the male
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The technique of porcupine-quill decoration among the North American Indians
1849:"Ecological Characteristics of Fishers in the Southern Oregon Cascade Range" 1461: 1866:
Diet of fishers (Martes pennanti) at the southernmost extent of their range
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family. It is the second largest rodent in North America after the
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Status of the Porcupine (Erithizon dorsatuh) in Arizona, 2000–2007
1702:. Journal of the Arizona-Nevada Academy of Science, 41(2), 36-41. 1439:
Mammal Species of the World: A Taxonomic and Geographic Reference
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to broadcast the smell. The characteristic odor comes from the R-
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is the most southern ranging from northern Mexico to Colorado.
491: 385: 345: 168: 158: 138: 2204:"Endangered Animal Fact Sheet â€” North American Porcupine" 1837:. Syracuse, N.Y.: St. Univ. Coll. Forest. Syracuse University. 1292:(12th ed.). New York, NY: Oxford University Press. 2011. 1055: 1053: 794:
The North American porcupine is most at risk from the fisher (
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The word "porcupine" comes from the middle or old French word
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occupies a small range in northeastern Quebec and Labrador.
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Elbroch, L. M., Hoogesteijn, R., & Quigley, H. (2016).
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10.1644/1545-1542(2002)083<0381:afrmfq>2.0.co;2
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Elbroch, L. M., Feltner, J., & Quigley, H. B. (2017).
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Ecology and management of fishers in Maine. (Ph.D. thesis)
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Sweitzer, R. A., Jenkins, S. H., & Berger, J. (1997).
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Tracks in sand (next to a human handprint shown for scale)
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South American hystricomorphs first appeared in the Lower
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Mabille, G., Descamps, S., & Berteaux, D. (2010).
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Globally, the North American porcupine is listed as a
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Juvenile male spends its first winters with its mother
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MĂŒller-Schwarze, Dietland & Sun, Lixing (2003).
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Patterson, Bruce D.; Upham, Nathan S. (2014-12-01).
415: 2240: 1947:The Beaver: Natural History of a Wetlands Engineer 1262: 1812:. University of Minnesota Press. pp. 134–6. 1676:. The Canadian Field-Naturalist, 129(3), 273-276. 1663:. The American Midland Naturalist, 169(1), 66-73. 2932: 1905:Stage‐dependent puma predation on dangerous prey 1771:. American Midland Naturalist. pp. 231–236. 734:Adult North American porcupine has 30,000 quills 660:In eastern North America, porcupines range from 456:period. Other hystricomorphs also migrated, but 2961:Fauna of the Great Lakes region (North America) 2249:(3). Southwestern Naturalist Society: 400–404. 2087: 1894:. The Canadian Field-Naturalist, 130(1), 53-55. 1810:The Fisher: Life History, Ecology, and Behavior 1769:The food habits of North American golden eagles 1689:. Journal of Wildlife Diseases, 28(2), 268-275. 1267:. Alaska Dept. of Fish and Game. Archived from 1474: 1166: 486:) era, found along the Arroyo del Cedazo near 2359: 1747:"Porcupine: Erethizon dorsatum bruneri Swenk" 1517:DeMatteo, K. E., & Harlow, H. J. (1997). 1372:. 22 January 2011. p. 40. Archived from 1085:10.2305/IUCN.UK.2016-3.RLTS.T8004A22213161.en 1762: 1760: 1432: 1265:"Porcupine: Alaska Wildlife Notebook Series" 2991:Extant Middle Pleistocene first appearances 2043: 1710: 1708: 1659:Osburn, D. J., & Cramer, M. J. (2013). 1616: 995: 993: 991: 989: 987: 985: 655: 401: 395: 2366: 2352: 2093: 1877:Sweitzer, R. A., & Berger, J. (1992). 1504:Fournier, F., & Thomas, D. W. (1997). 1487:. University of Michigan Museum of Zoology 1359: 1099: 1059: 751:Natural predators of this species include 632:The North American porcupine has a strong 297: 92: 70: 51: 2139: 1970: 1964: 1766: 1757: 1749:. Mammals of Kansas. 2002. Archived from 1726: 1724: 1718:. Conservation Biology, 11(6), 1407-1417. 1582: 1334: 1306: 1184: 1173:Zoological Journal of the Linnean Society 1083: 439: 2640: 1950:. Cornell University Press. p. 80. 1705: 1698:Brown, D. E., & Babb, R. D. (2009). 1672:Kukka, P. M., & Jung, T. S. (2015). 1508:. Physiological zoology, 70(6), 615-620. 1391: 1256: 982: 864:Porcupines are considered by some to be 859: 821: 729: 700: 604: 567: 2270: 1868:. Journal of Mammalogy, 80(3), 961-971. 1841: 1832: 1826: 1529: 1527: 1154:Integrated Taxonomic Information System 1143:Integrated Taxonomic Information System 1002:"Mammalian species: Erethizon dorsatum" 2933: 2170: 2096:"Porcupines And Their Need For Salt -" 1971:Koprowski, John L. (2 December 1994). 1910: 1907:. Journal of Zoology, 302(3), 164-170. 1807: 1739: 1730: 1721: 1475:Weber, Christopher; Myers, P. (2004). 1367:"Fort Resolution Chipewyan Dictionary" 1207: 890: 2685: 2684: 2347: 1785:. Population ecology, 52(4), 537-546. 1282: 999: 474:The earliest purported appearance of 2996:Pleistocene mammals of North America 2309: 2288: 2022: 1916: 1597: 1560: 1533: 1524: 1426: 1397: 1197:– via Oxford University Press. 588:of the branches. The porcupine, the 2941:IUCN Red List least concern species 2506:Black-tailed hairy dwarf porcupine 2338:Porcupine videos, photos, and facts 2313:Porcupines: The Animal Answer Guide 2178:IUCN Red List of Threatened Species 2026:Porcupines: The Animal Answer Guide 1920:Porcupines: The Animal Answer Guide 1468: 1071:IUCN Red List of Threatened Species 1000:Woods, Charles A. (June 13, 1973). 13: 2971:Fauna of the Western United States 2956:Fauna of the Eastern United States 2264: 1808:Powell, Roger A. (November 1993). 1400:Society for the Study of Evolution 846: 14: 3017: 2585:Paraguaian hairy dwarf porcupine 2331: 1733:Great horned owl versus porcupine 1290:Concise Oxford English dictionary 1263:Bromley, D.; Osborne, T. (1994). 478:in the fossil record is from the 420:meaning quill, the Ho-Chunk name 2498:Amazonian long-tailed porcupine 1342:"Porcupine (Erethizon dorsatum)" 1013:American Society of Mammalogists 927: 908: 664:to the Appalachian Mountains in 115: 2277:. Museum of the American Indian 2234: 2210: 2196: 2164: 2125:Section Hikers Backpacking Blog 2094:Kalinowski, Tom (14 May 2017). 2016: 1937: 1897: 1884: 1871: 1858: 1801: 1788: 1775: 1692: 1679: 1666: 1653: 1610: 1591: 1554: 1511: 1498: 817: 2538:Frosted hairy dwarf porcupine 2514:Mexican hairy dwarf porcupine 1444:Johns Hopkins University Press 1436:; Reeder, D. M., eds. (2005). 1201: 1160: 1127: 951: 672:. In the west they range from 563: 1: 1794:Lima, S. L. (1992, January). 939: 680:. They are commonly found in 523: 2986:Rodents of the United States 2966:Fauna of the Rocky Mountains 2593:Brown hairy dwarf porcupine 2554:Roosmalen's dwarf porcupine 2295:. Cornell University Press. 2292:The North American Porcupine 2271:Orchard, William C. (1916). 1540:. Cornell University Press. 1537:The North American Porcupine 976: 872:who inspect or attack them. 746: 432: 422: 416: 379: 7: 3006:Taxa named by Carl Linnaeus 2474:Bicolored-spined porcupine 2243:The Southwestern Naturalist 1619:Journal of Chemical Ecology 713: 344:, is a large quill-covered 10: 3022: 2946:NatureServe secure species 2029:. JHU Press. p. 109. 1923:. JHU Press. p. 100. 1881:. Ecology, 73(3), 867-875. 1598:Roze, Uldis (March 2006). 965:is invalid, assuming that 725: 691: 376:rose 3 million years ago. 370:Great American Interchange 3001:Mammals described in 1758 2693: 2667: 2631: 2616:North American porcupine 2604: 2482:Streaked dwarf porcupine 2444: 2435: 2385: 2374:Extant species of family 2073:10.1007/s10144-010-0198-5 1767:Olendorff, R. R. (1976). 1326:: CS1 maint: unfit URL ( 1234:10.1017/S009483730001109X 875:Their quills are used by 676:to northern mountains in 627: 600: 312: 305: 296: 255: 250: 227: 220: 112:Scientific classification 110: 90: 68: 59: 50: 23: 1604:Natural History Magazine 944: 919:eaten by a porcupine in 897:species of least concern 705:Porcupine in a pear tree 656:Distribution and habitat 332:North American porcupine 24:North American porcupine 2654:(Chaetomys subspinosus) 2562:Stump-tailed porcupine 2556:(Coendou roosmalenorum) 2500:(Coendou longicaudatus) 2100:The Adirondack Almanack 1639:10.1023/A:1022511026529 1314:"A coat of many quills" 1208:Martin, Thomas (1994). 696: 386: 2572:(Coendou sanctamartae) 2570:Santa Marta porcupine 2522:Black dwarf porcupine 2468:(Coendou baturitensis) 2378:(New World porcupines) 1973:"Sciurus carolinensis" 1833:Coulter, M.W. (1966). 1735:. Auk. pp. 58–59. 961:is a valid name while 827: 735: 706: 620: 573: 440:Taxonomy and evolution 402: 396: 360:). The porcupine is a 2890:Paleobiology Database 2532:(Coendou prehensilis) 860:Porcupines and humans 825: 733: 704: 612:, resting in a tree, 608: 571: 354:North American beaver 340:), also known as the 2618:(Erethizon dorsatum) 2530:Brazilian porcupine 2524:(Coendou nycthemera) 2492:(Coendou insidiosus) 2310:Roze, Uldis (2012). 2289:Roze, Uldis (2009). 2173:"Erethizon dorsatum" 2023:Roze, Uldis (2012). 1917:Roze, Uldis (2012). 1685:Wobeser, G. (1992). 1571:Journal of Mammalogy 1561:Roze, Uldis (2002). 1534:Roze, Uldis (2009). 1485:Animal Diversity Web 1107:"Erethizon dorsatum" 1078:: e.T8004A22213161. 837:Sciurus carolinensis 777:American black bears 528:Seven subspecies of 2652:Bristle-spined rat 2564:(Coendou rufescens) 2540:(Coendou pruinosus) 2516:(Coendou mexicanus) 2508:(Coendou melanurus) 2466:Baturite porcupine 2171:Emmons, L. (2016). 2121:"Porcupine Country" 2065:2010PopEc..52..537M 1753:on August 14, 2006. 1631:1997JSP....23.2737L 1226:1994Pbio...20....5M 1060:Emmons, L. (2016). 891:Conservation status 512:, date back to the 350:New World porcupine 322:Linnaeus, 1758 62:Conservation status 2752:erethizon-dorsatum 2739:Erethizon_dorsatum 2725:Erethizon dorsatum 2595:(Coendou vestitus) 2587:(Coendou spinosus) 2484:(Coendou ichillus) 2454:(Prehensile-tailed 2185:: e.T8004A22213161 2053:Population Ecology 1731:Eifrig, H (1909). 1565:Erethizon dorsatum 1479:Erethizon dorsatum 1137:Erethizon dorsatus 1064:Erethizon dorsatum 963:Erethizon dorsatum 959:Erethizon dorsatus 901:endangered species 828: 736: 707: 621: 574: 514:Middle Pleistocene 408:Erethizon dorsatum 342:Canadian porcupine 337:Erethizon dorsatum 315:Erethizon dorsatus 231:Erethizon dorsatum 31:Middle Pleistocene 2981:Rodents of Mexico 2976:Rodents of Canada 2928: 2927: 2695:Erethizon dorsata 2687:Taxon identifiers 2678: 2677: 2663: 2662: 2627: 2626: 2548:(Coendou quichua) 2546:Andean porcupine 2476:(Coendou bicolor) 2459: 2379: 2323:978-1-4214-0735-7 2302:978-0-8014-4646-7 2036:978-1-4214-0735-7 1980:Mammalian Species 1957:978-0-8014-4098-4 1930:978-1-4214-0735-7 1819:978-0-8166-2266-5 1625:(12): 2737–2754. 1547:978-0-8014-4646-7 1453:978-0-8018-8221-0 1271:on April 30, 2009 1186:10.1111/zoj.12201 1009:Mammalian Species 957:ITIS claims that 789:great horned owls 650:delta-decalactone 374:Isthmus of Panama 362:caviomorph rodent 358:Castor canadensis 328: 327: 323: 105: 85: 16:Species of rodent 3013: 2921: 2920: 2911: 2910: 2898: 2897: 2885: 2884: 2872: 2871: 2859: 2858: 2846: 2845: 2833: 2832: 2820: 2819: 2807: 2806: 2794: 2793: 2781: 2780: 2768: 2767: 2755: 2754: 2742: 2741: 2729: 2728: 2727: 2714: 2713: 2712: 2682: 2681: 2638: 2637: 2579:Coendou speratus 2490:Bahia porcupine 2458: 2457: 2451: 2442: 2441: 2377: 2368: 2361: 2354: 2345: 2344: 2327: 2306: 2285: 2283: 2282: 2259: 2258: 2238: 2232: 2231: 2229: 2222: 2214: 2208: 2207: 2200: 2194: 2193: 2191: 2190: 2168: 2162: 2161: 2159: 2157: 2143: 2137: 2136: 2134: 2132: 2117: 2111: 2110: 2108: 2106: 2091: 2085: 2084: 2047: 2041: 2040: 2020: 2014: 2013: 2011: 2010: 2005:on 27 March 2014 2004: 1998:. Archived from 1977: 1968: 1962: 1961: 1941: 1935: 1934: 1914: 1908: 1901: 1895: 1888: 1882: 1875: 1869: 1862: 1856: 1855: 1853: 1845: 1839: 1838: 1830: 1824: 1823: 1805: 1799: 1792: 1786: 1779: 1773: 1772: 1764: 1755: 1754: 1743: 1737: 1736: 1728: 1719: 1712: 1703: 1696: 1690: 1683: 1677: 1670: 1664: 1657: 1651: 1650: 1614: 1608: 1607: 1595: 1589: 1588: 1586: 1558: 1552: 1551: 1531: 1522: 1515: 1509: 1502: 1496: 1495: 1493: 1492: 1472: 1466: 1465: 1442:(3rd ed.). 1430: 1424: 1423: 1395: 1389: 1388: 1386: 1384: 1378: 1371: 1363: 1357: 1356: 1354: 1353: 1338: 1332: 1331: 1325: 1317: 1310: 1304: 1303: 1286: 1280: 1279: 1277: 1276: 1260: 1254: 1253: 1205: 1199: 1198: 1188: 1164: 1158: 1157: 1146: 1131: 1125: 1124: 1122: 1120: 1103: 1097: 1096: 1094: 1092: 1087: 1057: 1048: 1047: 1045: 1043: 1037: 1031:. Archived from 1006: 997: 970: 955: 931: 912: 877:Native Americans 796:Pekania pennanti 554:E. d. nigrescens 435: 425: 419: 405: 399: 389: 364:whose ancestors 321: 301: 284:E. d. nigrescens 274:E. d. epixanthum 233: 213:E. dorsatum 120: 119: 99: 96: 95: 79: 74: 73: 55: 44: 37: 27:Temporal range: 21: 20: 3021: 3020: 3016: 3015: 3014: 3012: 3011: 3010: 2931: 2930: 2929: 2924: 2916: 2914: 2906: 2901: 2893: 2888: 2880: 2877:Observation.org 2875: 2867: 2862: 2854: 2849: 2841: 2836: 2828: 2823: 2815: 2810: 2802: 2797: 2789: 2784: 2776: 2771: 2763: 2758: 2750: 2745: 2737: 2732: 2723: 2722: 2717: 2708: 2707: 2702: 2689: 2679: 2674: 2659: 2623: 2600: 2455: 2453: 2452: 2450: 2431: 2381: 2376:Erethizontidae 2372: 2334: 2324: 2303: 2280: 2278: 2267: 2265:Further reading 2262: 2239: 2235: 2227: 2220: 2216: 2215: 2211: 2202: 2201: 2197: 2188: 2186: 2169: 2165: 2155: 2153: 2145: 2144: 2140: 2130: 2128: 2119: 2118: 2114: 2104: 2102: 2092: 2088: 2048: 2044: 2037: 2021: 2017: 2008: 2006: 2002: 1988:10.2307/3504224 1975: 1969: 1965: 1958: 1942: 1938: 1931: 1915: 1911: 1902: 1898: 1889: 1885: 1876: 1872: 1863: 1859: 1851: 1847: 1846: 1842: 1831: 1827: 1820: 1806: 1802: 1793: 1789: 1780: 1776: 1765: 1758: 1745: 1744: 1740: 1729: 1722: 1713: 1706: 1697: 1693: 1684: 1680: 1671: 1667: 1658: 1654: 1615: 1611: 1596: 1592: 1559: 1555: 1548: 1532: 1525: 1516: 1512: 1503: 1499: 1490: 1488: 1473: 1469: 1454: 1431: 1427: 1412:10.2307/2405536 1396: 1392: 1382: 1380: 1379:on 4 April 2023 1376: 1369: 1365: 1364: 1360: 1351: 1349: 1340: 1339: 1335: 1319: 1318: 1312: 1311: 1307: 1300: 1288: 1287: 1283: 1274: 1272: 1261: 1257: 1206: 1202: 1165: 1161: 1148: 1133: 1132: 1128: 1118: 1116: 1105: 1104: 1100: 1090: 1088: 1058: 1051: 1041: 1039: 1035: 1021:10.2307/3504036 1004: 998: 983: 979: 974: 973: 956: 952: 947: 942: 935: 932: 923: 913: 893: 862: 849: 847:Life expectancy 820: 749: 728: 716: 699: 694: 658: 630: 603: 582:American beaver 566: 550:E.d. epixanthum 526: 504:, found in the 442: 382: 319:Hystrix dorsata 317: 246: 235: 229: 216: 114: 106: 97: 93: 86: 75: 71: 64: 46: 45: 38: 29: 25: 17: 12: 11: 5: 3019: 3009: 3008: 3003: 2998: 2993: 2988: 2983: 2978: 2973: 2968: 2963: 2958: 2953: 2951:Erethizontidae 2948: 2943: 2926: 2925: 2923: 2922: 2912: 2899: 2886: 2873: 2860: 2847: 2834: 2821: 2808: 2795: 2782: 2769: 2756: 2743: 2730: 2715: 2699: 2697: 2691: 2690: 2676: 2675: 2668: 2665: 2664: 2661: 2660: 2658: 2657: 2648: 2646: 2635: 2629: 2628: 2625: 2624: 2622: 2621: 2612: 2610: 2602: 2601: 2599: 2598: 2590: 2582: 2575: 2567: 2559: 2551: 2543: 2535: 2527: 2519: 2511: 2503: 2495: 2487: 2479: 2471: 2462: 2460: 2439: 2437:Erethizontinae 2433: 2432: 2430: 2429: 2423: 2421:Hystricognathi 2417: 2415:Hystricomorpha 2411: 2405: 2399: 2393: 2386: 2383: 2382: 2371: 2370: 2363: 2356: 2348: 2342: 2341: 2333: 2332:External links 2330: 2329: 2328: 2322: 2307: 2301: 2286: 2266: 2263: 2261: 2260: 2233: 2230:on 2011-04-19. 2209: 2195: 2163: 2138: 2127:. 13 June 2008 2112: 2086: 2059:(4): 537–546. 2042: 2035: 2015: 1963: 1956: 1936: 1929: 1909: 1896: 1883: 1870: 1857: 1840: 1825: 1818: 1800: 1787: 1774: 1756: 1738: 1720: 1704: 1691: 1678: 1665: 1652: 1609: 1590: 1577:(2): 381–385. 1553: 1546: 1523: 1510: 1497: 1467: 1452: 1425: 1390: 1358: 1333: 1305: 1299:978-0199601080 1298: 1281: 1255: 1200: 1179:(4): 942–963. 1159: 1126: 1098: 1049: 980: 978: 975: 972: 971: 949: 948: 946: 943: 941: 938: 937: 936: 933: 926: 924: 914: 907: 892: 889: 881:boreal forests 861: 858: 854:motor vehicles 848: 845: 819: 816: 800:snowshoe hares 748: 745: 727: 724: 715: 712: 698: 695: 693: 690: 657: 654: 629: 626: 610:E. d. dorsatum 602: 599: 565: 562: 534:E. d. dorsatum 525: 522: 506:Conard Fissure 488:Aguascalientes 446:hystricomorphs 441: 438: 381: 378: 326: 325: 310: 309: 303: 302: 294: 293: 292: 291: 286: 281: 276: 271: 266: 261: 259:E. d. dorsatum 253: 252: 248: 247: 236: 225: 224: 218: 217: 210: 208: 204: 203: 196: 192: 191: 189:Erethizontinae 186: 182: 181: 179:Erethizontidae 176: 172: 171: 166: 162: 161: 156: 152: 151: 146: 142: 141: 136: 132: 131: 126: 122: 121: 108: 107: 91: 88: 87: 69: 66: 65: 60: 57: 56: 48: 47: 28: 26: 15: 9: 6: 4: 3: 2: 3018: 3007: 3004: 3002: 2999: 2997: 2994: 2992: 2989: 2987: 2984: 2982: 2979: 2977: 2974: 2972: 2969: 2967: 2964: 2962: 2959: 2957: 2954: 2952: 2949: 2947: 2944: 2942: 2939: 2938: 2936: 2919: 2913: 2909: 2904: 2900: 2896: 2891: 2887: 2883: 2878: 2874: 2870: 2865: 2861: 2857: 2852: 2848: 2844: 2839: 2835: 2831: 2826: 2822: 2818: 2813: 2809: 2805: 2800: 2796: 2792: 2787: 2783: 2779: 2774: 2770: 2766: 2761: 2757: 2753: 2748: 2744: 2740: 2735: 2731: 2726: 2720: 2716: 2711: 2705: 2701: 2700: 2698: 2696: 2692: 2688: 2683: 2673: 2672: 2666: 2656: 2655: 2650: 2649: 2647: 2645: 2644: 2639: 2636: 2634: 2630: 2620: 2619: 2614: 2613: 2611: 2609: 2608: 2603: 2597: 2596: 2591: 2589: 2588: 2583: 2581: 2580: 2576: 2574: 2573: 2568: 2566: 2565: 2560: 2558: 2557: 2552: 2550: 2549: 2544: 2542: 2541: 2536: 2534: 2533: 2528: 2526: 2525: 2520: 2518: 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JHU Press. 2315: 2314: 2308: 2304: 2298: 2294: 2293: 2287: 2276: 2275: 2269: 2268: 2256: 2252: 2248: 2244: 2237: 2226: 2219: 2213: 2205: 2199: 2184: 2180: 2179: 2174: 2167: 2152: 2148: 2142: 2126: 2122: 2116: 2101: 2097: 2090: 2082: 2078: 2074: 2070: 2066: 2062: 2058: 2054: 2046: 2038: 2032: 2028: 2027: 2019: 2001: 1997: 1993: 1989: 1985: 1981: 1974: 1967: 1959: 1953: 1949: 1948: 1940: 1932: 1926: 1922: 1921: 1913: 1906: 1900: 1893: 1887: 1880: 1874: 1867: 1861: 1850: 1844: 1836: 1829: 1821: 1815: 1811: 1804: 1797: 1791: 1784: 1778: 1770: 1763: 1761: 1752: 1748: 1742: 1734: 1727: 1725: 1717: 1711: 1709: 1701: 1695: 1688: 1682: 1675: 1669: 1662: 1656: 1648: 1644: 1640: 1636: 1632: 1628: 1624: 1620: 1613: 1605: 1601: 1594: 1585: 1580: 1576: 1572: 1568: 1566: 1557: 1549: 1543: 1539: 1538: 1530: 1528: 1520: 1514: 1507: 1501: 1486: 1482: 1480: 1471: 1463: 1459: 1455: 1449: 1445: 1441: 1440: 1435: 1434:Wilson, D. E. 1429: 1421: 1417: 1413: 1409: 1405: 1401: 1394: 1375: 1368: 1362: 1348:on 2013-01-12 1347: 1343: 1337: 1329: 1323: 1315: 1309: 1301: 1295: 1291: 1285: 1270: 1266: 1259: 1251: 1247: 1243: 1239: 1235: 1231: 1227: 1223: 1219: 1215: 1211: 1204: 1196: 1192: 1187: 1182: 1178: 1174: 1170: 1163: 1155: 1151: 1144: 1140: 1138: 1130: 1115: 1113: 1108: 1102: 1086: 1081: 1077: 1073: 1072: 1067: 1065: 1056: 1054: 1038:on 2015-09-24 1034: 1030: 1026: 1022: 1018: 1014: 1010: 1003: 996: 994: 992: 990: 988: 986: 981: 968: 964: 960: 954: 950: 930: 925: 922: 918: 911: 906: 905: 904: 902: 898: 888: 884: 882: 878: 873: 871: 867: 857: 855: 844: 840: 838: 832: 824: 815: 813: 809: 803: 801: 797: 792: 790: 786: 785:golden eagles 782: 778: 774: 770: 766: 762: 758: 754: 744: 741: 732: 723: 721: 711: 703: 689: 687: 683: 679: 675: 671: 667: 666:West Virginia 663: 653: 651: 647: 643: 639: 635: 625: 619: 615: 611: 607: 598: 595: 591: 585: 583: 579: 570: 561: 559: 555: 551: 547: 546:E. d. bruneri 543: 539: 538:E. d. picinum 535: 531: 521: 519: 515: 511: 507: 503: 499: 498: 493: 489: 485: 481: 477: 472: 470: 465: 463: 459: 455: 451: 447: 437: 434: 429: 424: 418: 413: 409: 404: 398: 393: 388: 377: 375: 371: 367: 363: 359: 355: 351: 347: 343: 339: 338: 333: 324: 320: 316: 311: 308: 304: 300: 295: 290: 289:E. d. picinum 287: 285: 282: 280: 277: 275: 272: 270: 267: 265: 264:E. d. bruneri 262: 260: 257: 256: 254: 249: 244: 240: 234: 232: 226: 223: 222:Binomial name 219: 215: 214: 209: 206: 205: 202: 201: 197: 194: 193: 190: 187: 184: 183: 180: 177: 174: 173: 170: 167: 164: 163: 160: 157: 154: 153: 150: 147: 144: 143: 140: 137: 134: 133: 130: 127: 124: 123: 118: 113: 109: 103: 89: 83: 78: 77:Least Concern 67: 63: 58: 54: 49: 42: 36: 32: 22: 19: 2694: 2669: 2653: 2641: 2633:Chaetomyinae 2617: 2615: 2606: 2605: 2594: 2586: 2577: 2571: 2563: 2555: 2547: 2539: 2531: 2523: 2515: 2507: 2499: 2491: 2483: 2475: 2467: 2445: 2419:Infraorder: 2312: 2291: 2279:. Retrieved 2273: 2246: 2242: 2236: 2225:the original 2212: 2206:. July 2015. 2198: 2187:. Retrieved 2182: 2176: 2166: 2154:. Retrieved 2150: 2147:"Got Pests?" 2141: 2129:. Retrieved 2124: 2115: 2103:. Retrieved 2099: 2089: 2056: 2052: 2045: 2025: 2018: 2007:. Retrieved 2000:the original 1982:(480): 1–9. 1979: 1966: 1946: 1939: 1919: 1912: 1904: 1899: 1891: 1886: 1878: 1873: 1865: 1860: 1843: 1834: 1828: 1809: 1803: 1795: 1790: 1782: 1777: 1768: 1751:the original 1741: 1732: 1715: 1699: 1694: 1686: 1681: 1673: 1668: 1660: 1655: 1622: 1618: 1612: 1603: 1593: 1574: 1570: 1564: 1556: 1536: 1518: 1513: 1505: 1500: 1489:. Retrieved 1484: 1478: 1470: 1438: 1428: 1406:(1): 87–98. 1403: 1399: 1393: 1381:. Retrieved 1374:the original 1361: 1350:. Retrieved 1346:the original 1336: 1308: 1289: 1284: 1273:. Retrieved 1269:the original 1258: 1217: 1214:Paleobiology 1213: 1203: 1176: 1172: 1162: 1136: 1129: 1117:. Retrieved 1110: 1101: 1089:. Retrieved 1075: 1069: 1063: 1040:. 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Index

Middle Pleistocene
present
YBP

Conservation status
Least Concern
IUCN 3.1
NatureServe
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Mammalia
Rodentia
Erethizontidae
Erethizontinae
Erethizon
Binomial name
Linnaeus
1758

Synonyms
rodent
New World porcupine
North American beaver
caviomorph rodent
crossed
Great American Interchange
Isthmus of Panama

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