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Gray fox[1]
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Urocyon
Species: U. cinereoargenteus
Binomial name
Urocyon cinereoargenteus
(Schreber, 1775)
Grey Fox range

The gray fox (Urocyon cinereoargenteus) is a mammal of the order Carnivora ranging throughout most of the southern half of North America from southern Canada to northern Venezuela and Colombia.[1][3] This species and the closely related Island Fox are the only living members of the genus Urocyon, which is considered to be among the most primitive of the living canids. Though it was once the most common fox in the east, human advancement allowed the red fox to become dominant. The Pacific States still have the gray fox as a dominant.


Description and behavior

A yawning gray fox, northern Florida

The gray fox is distinguished from most other canids by its grizzled upper parts, strong neck and black-tipped tail, while the skull can be distinguished from all other North American canids by its widely separated temporal ridges that form a U-shape. There is little sexual dimorphism, save for the males being slightly smaller than females. The gray fox ranges from 800 to 1125 mm (31.5 to 41.3 inches) in length. Its tail measures 275 to 443 mm (10.8 to 17.5 inches) and its hind feet measure 100 to 150 mm (4.9 to 5.9 inches). It weighs 3.6 to 6.82 kg (7.9 to 15 lbs).[3] It is readily differentiated from the red fox by the lack of "black stockings" that stand out on the latter.

The gray fox's ability to climb trees is shared only with the Asian raccoon dog among canids. Its strong, hooked claws allow it to scramble up trees to escape predators such as the domestic dog or the coyote, or to reach tree-bound or arboreal food sources. It descends primarily by jumping from branch to branch, or by descending slowly backwards as a house cat. The gray fox is nocturnal or crepuscular and dens in hollow trees, stumps or appropriated burrows during the day.


Gray fox, showing black tail stripe, Sierra Nevada

The gray fox is monogamous. The breeding season of the gray fox varies geographically; in Michigan, the gray fox mates in early March, in Alabama, breeding peaks occur in February.[3] The gestation period lasts about 53 days. Litter size ranges from 1 to 7. Kits begin to hunt with their parents at the age of 3 months. By the time they are 4 months old, the kits have developed their permanent dentition and can forage on their own. The family group remains together until autumn when the young reach sexual maturity and disperse.


The gray fox is a solitary hunter and is largely omnivorous. It frequently preys upon the Eastern Cottontail (Sylvilagus floridanus), though it will readily catch voles, shrews, and birds. The gray fox supplements its diet with whatever fruits are readily available and generally eats more vegetable matter than does the Red Fox (Vulpes vulpes).[3]


A gray fox at night
Adult male & female gray Fox
Juvenile gray fox

There are 16 subspecies recognized for this fox:[1]

  • Urocyon cinereoargenteus cinereoargenteus
  • Urocyon cinereoargenteus borealis
  • Urocyon cinereoargenteus californicus
  • Urocyon cinereoargenteus costaricensis
  • Urocyon cinereoargenteus floridanus
  • Urocyon cinereoargenteus fraterculus
  • Urocyon cinereoargenteus furvus
  • Urocyon cinereoargenteus guatemalae
  • Urocyon cinereoargenteus madrensis
  • Urocyon cinereoargenteus nigrirostris
  • Urocyon cinereoargenteus ocythous
  • Urocyon cinereoargenteus orinomus
  • Urocyon cinereoargenteus peninsularis
  • Urocyon cinereoargenteus scottii
  • Urocyon cinereoargenteus townsendi
  • Urocyon cinereoargenteus venezuelae


  1. ^ a b c Wozencraft, W. C. (16 November 2005). Wilson, D. E., and Reeder, D. M. (eds). ed. Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. ISBN 0-801-88221-4.  
  2. ^ Cypher et al. (2008). Urocyon cinereoargenteus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 06 May 2008. Database entry includes justification for why this species is of least concern
  3. ^ a b c d "Urocyon cinereoargenteus". Animal Diversity Web. Retrieved 2007-08-19.  
  • Goddard-Taylor, Gayle (Winter 2005-2006). "The Silver Ghost: The life and times of the gray fox". Sanctuary: The Journal of the Massachusetts Audubon Society (Massachusetts Audubon Society) 45 (2): 13–15.  


Up to date as of January 31, 2010

From Wikia Gaming, your source for walkthroughs, games, guides, and more!

Gray Fox

Gray fox in SSBB

Game Series Metal Gear series
1st Appearance Metal Gear
Alias: Null/Cyborg Ninja/Frank Hunter
Alter Ego: Frank Jaeger
Japanese Name:
Affiliation: FOXHOUND
Occupation: FOXHOUND agent
Gender: Male
Blood Type:
Fighting Style:
Special Skill(s):
Voice Actor(s):

The code named Gray Fox is a character from the Metal Gear series. His real name is Frank Jaeger. In the original Metal Gear, he was saved by Solid Snake. Later in the games, he betrayed and fought him in the final battle in a minefield. Fox lost and was presumed to be dead, but his body was recovered and put into a Cyborg Ninja exoskeleton that appears in Metal Gear Solid.

Gray Fox in Metal Gear Solid.
Gray Fox in Metal Gear(?)
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