What I don't get is that if the Vulcans are so volatile, how did the Romulans survive, thrive, and develop emotional responses more akin to humans.
That's a very good question and answering it would finally provide the key to "unlocking" the Romulans - making them believable and coherent as a single species, the way
DS9 did for the Cardassians.
It wasn't solely the Vulcan's violent nature that threat them (themselves), it was their violent nature combined with modern weapons. Diane Duane wrote in (non-canon) Spock's World that Surak's time already possessed nuclear weapon, that they were being used in warfare and that the Vulcans had recently, from his perspective, tested a antimatter weapon on a near-by world. This was partly what spurred Surak philosophy.
The Romulans may very well kill each other with near abandon, just not large numbers using nukes. But if their violence is combined with a strong cultural sense of duty, that sense of duty may be what the Romulans use for violence control instead of non-emotions. It doesn't matter how Vulcanoid control their natures, as long as it is controlled.
As much as I like All Our Yesterdays, it doesn't really make sense. Why would Spock revert just because he's in another time? It would mean that the emotional control of all Vulcans is connected somehow, even over light years.
Just as it was in The Immunity Syndrome.
TIS comes right out and says that Spock is connected mentally with the crew of the Intrepid, enough so that he knew that the crew didn't understand what was killing them. Amok Time too, I believe, implies that Spock and T'Pring had some kind of active (low level?) mental connected, enough so that they both go into Pon Farr at the same time.
The ten thousand Vulcans who were off Vulcan when it was destroyed in the late movie, likely felt it.
Which of course means that Spock's problem was never his human side. It was his Vulcan side.
Spock's Human half might have interfered with his control, but it wasn't his Human half that
needed to be controlled.
T'Girl, do you have any external references for post#199.
My post concerning a girl's extra eagerness basically was from personal observations and anecdotal, but if you go to just about any gynecological site the confirmation will be there, or a woman's issues forum. Or (smiles) you could just ask your mother, I asked mine.
On the male side of it, I figure it's either sweat gland pheromones or the scent from 'uhmm' somewhere else. There also a girl to girl side of this, called the McClintock effect, ever notice that most of your girlfriend's girlfriends all have their periods at the same time?