` :::::: Yes, that is what I was thinking. Regarding the method of founding a colony within an existing colony, you perhaps didn't notice that I had already re-worded that sentence. I don't know, but I prefer present tense ``extends`` to future ``will extend``. You changed ``the life of the colony`` to ``the life of the nest'. If you want to keep ``nest``, that's fine, but would you consider changing ``will extend`` back to ``extends``, or, if you don't like that, perhaps ``tends to extend the lifetime of the nest``?   `