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They've reached true immortality when they can go in one end of an animal and come out the other still alive.
by electromagnetic 17y ago
They've reached true immortality when they can go in one end of an animal and come out the other still alive.
- derefr 17y agoLots of animals can do that, although the ones that can survive in a body—for example, tapeworms—usually start preferring to survive in that body (it relieves you of all the work of creating a biological equilibrium of your own), so they evolve to hold on inside instead of coming out.