Self-cannibalism

For the cellular phenomenon, see Autophagy (cellular).

Self-cannibalize is the practice of eating oneself, also called autocannibalism,[1] or autosarcophagy.[2] A similar term which is applied differently is autophagy, which specifically denotes the normal process of self-degradation by cells. While almost an exclusive term for this process, autophagy nonetheless has occasionally made its way into more common usage.[3]

Among humans

As a natural occurrence

A certain amount of self-cannibalism occurs unwittingly, as the body consumes dead cells from the tongue and cheeks. Ingesting one's own blood from an unintentional lesion such as a nose-bleed or an ulcer is clearly not intentional harvesting and consequently not considered cannibalistic.

Catabolisis is also sometimes described as "self-cannibalism."

As a disorder or symptom thereof

Main article: Autophagia

Fingernail-biting that develops into fingernail-eating is a form of pica, although many do not consider nail biting as a true form of cannibalism. Other forms of pica include the compulsion of eating one's own hair, which can form a hairball in the stomach.

As a choice

Some people will engage in self-cannibalism as an extreme form of body modification, for example eating their own skin.[4] Others will drink their own blood, a practice called autovampirism,[5] but sucking blood from wounds is generally not considered cannibalism. Placentophagy may be a form of self-cannibalism.

As a crime

Forced self-cannibalism as a form of torture or war crime has been reported. Erzsébet Báthory allegedly forced some of her servants to eat their own flesh in the early 17th century.[6] In the 16th century, Spanish colonizers forced natives to eat their own testicles.[7] Incidents were reported in the years following the 1991 Haitian coup d'état.[8] In the 1990s young people in Sudan were forced to eat their own ears.[9]

Among animals

The short-tailed cricket is known to eat its own wings.[10] There is evidence of certain animals digesting their own nervous tissue when they transition to a new phase of life. The sea squirt (with a tadpole-like shape) contains a ganglion "brain" in its head, which it digests after attaching itself to a rock and becoming stationary, forming an anemone-like organism. This has been used as evidence that the purpose of brain and nervous tissue is primarily to produce movement. Self-cannibalism behavior has been documented in North American rat snakes: one captive snake attempted to consume itself twice, dying in the second attempt. Another wild rat snake was found having swallowed about two-thirds of its body.[11]

Cultural references

The ancient symbol Ouroboros depicts a serpent biting its own tail.

See also

Notes

  1. "Man-eaters: The Evidence for Coastal Tupi Cannibalism" mei(sh) dot org
  2. Mikellides AP (October 1950). "Two cases of self-cannibalism (autosarcophagy)". Cyprus Med J 3 (12): 498–500. PMID 14849189.
  3. Benecke, Mark "First report of non-psychotic self-cannibalism (autophagy), tongue splicing and scar patterns (scarification) as an extreme form of cultural body modification in a Western civilization"
  4. See Benecke above.
  5. NCBI PubMed
  6. Adams, Cecil "Did Dracula really exist?" The Straight Dope
  7. Miguel A. De La Torre, "Beyond Machismo: A Cuban Case Study" (citing Diana Iznaga, "Introduction" to Fernando Ortise, Los negros curros (La Habana: Editorial de Ciencias Sociales, 1986) xviii-xix.)
  8. Chin, Pat. "Behind the Rockwood case" Workers World, April 6, 1996
  9. Lambeth Daily News 6 August 1998
  10. Taber, Stephen Welton (2005) Invertebrates Of Central Texas Wetlands, page 200.
  11. Mattison, Chris (2007). The New Encyclopedia of Snakes. Princeton, N.J.: Princeton University Press. p. 105. ISBN 0-691-13295-X.
  12. "Radical Locavore". thecomicstrips.com. Retrieved 14 January 2012.
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