I admit I clicked through to read about the drama of the P-MOW. Ouch! That close-up of the stings is really interesting, though.

I recently had a lunch-room discussion about these animals with a colleague, who insisted the different parts of this colonial organism were genetically unrelated. Which I thought was unlikely, because evolutionarily you're not likely to sacrifice your reproductive ability and volunteer to be, say, the tentacles and let some unrelated individual be the reproductive organs. It turned out I was right, which gave me unholy glee, since the guy I was arguing with is kind of an obnoxious know-it-all and is always correcting people about things. *g*

Anyway, it seems like you had a pretty cool trip!