sorry? where is the definition of parasite that says it must come from another species? I missed that one!
IngentaConnect The foetus as a parasite[SIZE=-1]The
foetus as a
parasite. Author: Naismith, D. J.1. Source: Proceedings of the Nutrition Society, Volume 28, Number 1, March 1969 , pp. 25-31(7)
...[/SIZE]
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www.ingentaconnect.com/content/cabi/pns/1969/00000028/00000001/art00008 - [/SIZE]
PEP Web - Human Destructiveness: An Essay on Instinct, Foetal ...[SIZE=-1]The instinctual metamorphosis involved in the transition from
foetal life as a 'placental parasite' to that of 'baby' in symbiotic
relationship with the
...[/SIZE]
[SIZE=-1]
www.pep-web.org/document.php?id=IRP.014.0021A - Similar pages[/SIZE]
Biology. An organism that grows, feeds, and is sheltered on or in a different organism while contributing nothing to the survival of its host.
http://www.answers.com/topic/parasite?cat=health
Parasite: An organism that lives in or on and takes its nourishment from another organism. A parasite cannot live independently.
http://www.medterms.com/script/main/art.asp?articlekey=4769
Something that lives in, with, or on another
organism and obtains benefits from the
host, which it usually injures.
http://www.everythingbio.com/glos/definition.php?word=parasite
All of whyich pretty accurately describe the relationship between a mother and a foetus in placental mammals
But hey, the word re-definition project must roll on, huh?