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Nathan Myers

If they cannot replicate, they must be doing something that benefits their sisters but not even near-relatives. The only way I can see that occurring is in a monoculture. I will speculate from the position of complete ignorance that these rhizobia live in a colony that originates from a single individual, segregated from other colonies, and that some members do retain the ability to procreate and form a new colony when they leave or the one they are in dissolves.

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