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[–]AFutureConcern 1 insightful - 2 fun1 insightful - 1 fun2 insightful - 2 fun -  (0 children)

From an evolutionary point of view all that matters is survival, so according to the first definition it doesn't matter how they pass on their genes, just that they are doing so. (I would also consider Toxoplasma Gondii to be one of the "superior"/successful organisms.)

The second definition would cover the fact that they "didn't do it themselves," but it's hard to pin an exact definition down with that one.