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Corn snake

species of reptile

The corn snake (Pantherophis guttatus) is a North American species of rat snake that kills small prey by constriction.

Corn snake
Kornnatter.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Pantherophis
Species:
P. guttatus
Binomial name
Pantherophis guttatus
(Linnaeus, 1766)
Pantherophis guttatus map.svg
Synonyms

Corn snakes are found throughout the southeastern and central United States. They are often kept as pets. They reach a moderate size of 3.9–6.0 feet (1.2–1.8 m). In the wild, they usually live around 6–8 years, but in captivity can live to be up to 23 years old[4] or longer.[5]

Corn snakes look similar to the venomous copperhead snake and are often killed because of this similarity. Corn snakes are harmless and beneficial to humans.[6] They are one of the most common snakes kept as pets, alongside the garter snake and ball python. Corn snakes lack venom and help control populations of wild rodent pests that damage crops and spread disease.[7] They can be distinguished from copperheads by their brighter colors, slender build and lack of heat-sensing pits.[8]

Although the corn snake is distinguished by its bright red orange colored scales, possible mutations can occur completely rejecting these pigments, changing its appearance. The two-color mutations that are known to occur is albinism and anerythrism. Snakes that are homozygous for albinism lack the black pigment, and the ones that are homozygous for anerythrism lack the red pigment.[9]

The corn snake is named for the species' regular presence near grain stores, where it preys on mice and rats that eat harvested corn.[10] The Oxford English Dictionary cites this usage as far back as 1675. Some sources maintain that the corn snake is so-named because the distinctive, nearly-checkered pattern of the snake's belly scales resembles the kernels of variegated corn.[11][12] Regardless of the name's origin, the corn reference can be a useful mnemonic for identifying them. Their diet in the wild mainly consists of rodents, small amphibians, birds and/or their eggs, other types of eggs, and so on. They're not known for eating insects, though. In captivity they're usually fed a steady diet of pinky mice and other types of creatures such as the ones above.

ImagesEdit

ReferencesEdit

  1. Hammerson, G.A. (2007). "Pantheropis guttatus". IUCN Red List of Threatened Species. Version 2015.3. International Union for Conservation of Nature. Retrieved 22 September 2015.
  2. Stejneger L, Barbour T. 1917. A Check List of North American Amphibians and Reptiles. Cambridge, Massachusetts: Harvard University Press. iv + 125 pp. (Elaphe guttata, p. 82).
  3. "Pantheropis guttatus". The Reptile Database.
  4. "Corn Snake Fact sheet".
  5. Slavens, Frank, and Slavens, Kate, "Elaphe guttata guttata" entry in Slavens longevity index.
  6. "Corn Snake".
  7. "Did Someone Say Snakes?".
  8. "Reptiles and amphibians of Virginia".
  9. "Shibboleth Authentication Request". login.proxy.cc.uic.edu. Retrieved 2019-04-10.
  10. "FLMNH - Eastern Corn Snake (Pantherophis guttatus)".
  11. PetCo Corn Snake Care Sheet
  12. Smithsonian National Zoo Corn Snake Fact Sheet

6. Bechtel, H. (1989, July 01). Color Mutations in the Corn Snake (Elaphe guttata guttata): Review and Additional Breeding Data. Retrieved April 08, 2019, Journal of Heredity, Volume 80, Issue 4, July 1989, Pages 272–276,