Riddle me this: What lives on its own substance and dies when it devours itself?!

Question: Riddle me this: What lives on its own substance and dies when it devours itself!?
Answers:

A cannibalistic poop eater!?

Oh cate I try, and that is my real name!.*smile*Www@Enter-QA@Com

not that i think that this is right or anything, but i'm gonna take a guess and say a cannibal!? hahaha!.!.!.i haven't a clue!.Www@Enter-QA@Com

a very hungry candle indeed!.Www@Enter-QA@Com

yo mamma!Www@Enter-QA@Com

yup a candleWww@Enter-QA@Com

Uh!.!.!.!.candles!?Www@Enter-QA@Com

candle!.Www@Enter-QA@Com

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