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Trills / Dax
In my opinion, the Trills are one of the more fascinating aliens that Star Trek has ever invented, and in many ways the character of Dax is one of the more complex and interesting that we have seen. The purpose of this article is twofold - to discuss the Trills in general, and the interesting quandaries that they have presented us with, and to explore and summarise the history of the Dax character.
For those who don't know, the Trill are a "joined species". That is, they are composed of two very distinct races who have somehow managed to physically join themselves to one another and operate as a single being.
Trill were first seen in the TNG episode "The Host", where an Ambassador named Odan was attempting to negotiate a peace treaty between two political factions of an alien race. His father had negotiated a treaty between the same groups many years before, and it was felt that Odan might have influence because of this.
Odan had a built up forehead, something that is common to most aliens in Trek, but was otherwise essentially Human in appearance.
During the course of the episode it seemed that Odan had some form of illness - at one point a large swelling appeared on his stomach, and he used some kind of device to make it go down. Later he refused to go through a transporter, claiming that he found the idea of being disintegrated unpleasant much as McCoy had claimed a century or so earlier. When an emergency threatened, however, Odan claimed that using the transporter would kill him. Fortunately Riker is able to save the day without using a transporter.
Once the injured Odan was back aboard the Enterprise-D, Crusher scanned him and discovered what looked like a large parasite within him. She planned to remove it, but Odan prevented her - he declared that the parasite was actually a symbiont joined to the Humanoid host body, and that it was the symbiont which had the memories and personality. When Odan's body died Crusher lasered a cut in his chest and removed the symbiont, but it could not survive outside of a host for any length of time. A replacement host was still some time away, so Riker volunteered to host the symbiont until a new Trill host could reach them.
Once the host was implanted within Riker, his own personality was completely submerged by Odan. Although his metabolism was being damaged by the symbiont, Riker was able to maintain it until the new host arrived. This one was a female, who introduced herself to Crusher before the procedure. Once in place, Odan went on his way and the episode ended.
References made by Odan to the Trill as a "joined species" indicate that this joining is very much the norm, although this is somewhat speculative.
You have to wonder just what the hosts get out of this arrangement. These aren't animals, after all, they are thinking, sentient beings - the way that the replacement host greeted Crusher prior to the implantation proves that. Yet after joining the host's personality is completely submerged - it is the symbiont which does all the thinking, talking, moves the body around, etc. We don't know if the host's mind is blank during the joined life - if so, then joining is effectively death for the host. On the other hand, to still be aware of what was going on around you but to be unable to do or say anything about it would be a fate almost as bad as death. Perhaps worst of all is the possibility that the host is aware of its own existence but deprived of sensory input - this would make joining the ultimate in sensory deprivation for the host, who would surely go insane in short order.
Yet the hosts apparently volunteer for this life of living hell or worse - certainly Odan's final replacement showed no obvious signs of coercion. We can only speculate that there is some extremely heavy cultural push for hosts to offer themselves up to their captors.
Let's summarise the important points of the Trill as seen in "The Host" :
|Host is Humanoid, with built up forehead.|
|Use of transporter is apparently fatal.|
|Host's stomach must be cut open to remove symbiont.|
|Symbiont personality completely submerges that of host.|
|Host has a distinct personality of its own, clearly sentient and intelligent.|
|Implication is that most or all Trill are joined.|
Deep Space Nine
Trills were next seen in Deep Space Nine, when Jadzia Dax arrived as one of the main characters. The first and most obvious change from TNG was in appearance; Jadzia had none of the built up forehead that Odan had possessed, but she did have some skin markings; a series of spots which went from her forehead down the side of her face and down her neck. Jadzia once famously confirmed that the spots go "all the way down"... We've since seen this pattern repeated on all Trill.
The first episode also established another fact about Jadzia, virtually in the opening dialogue :
|"He's a little young for you, isn't he?"|
|"He's twenty seven, I'm twenty eight."|
|"Three hundred twenty eight, maybe. Did you tell him about that slug inside you?"|
|"Yes Benjamin, he knows I'm a Trill. He finds it fascinating, he's never met a joined species before"|
|Host is Humanoid, with normal forehead but with spots on skin.|
|Use of transporter is perfectly normal.|
|Host has a pouch for implantation and removal of symbiont.|
|Trill personality is a combination of host and symbiont.|
|Host has a distinct personality of its own, clearly sentient and intelligent.|
|Only one in one thousand Trill are joined.|
I can see only three ways to approach the Trill problem :
Option 1 : More than one Trill species
First, we could assume that there are two species called the Trill, and that both just happen to be joined species. Perhaps one is called the "Tryl" and the others are called "Trill". On the plus side this would completely explain all of all the differences between the two versions of the Trill. On the minus side - two species, with identical-sounding names, who just happen to both comprise humanoid hosts that join to slug-like symbionts? You have to believe some wacky stuff to be really into Star Trek, but that pushes credibility a little far for me!
Option 2 : More than one race
Secondly, we could assume that there are two (or more) distinct races of Trill host. If you put a Trill from TNG next to a Trill from DS9 they do look somewhat different, but not really much more so than an Asian Human and a Caucasian Human. And Humans are not all that varied compared to some species - consider a Chihuahua next to a St. Bernard!
For convenience, I will call the Trill as seen in TNG "Alphas" and those seen in DS9 "Betas". The differences are then explained as being peculiarities of the two races.
So we can say that transporters are fatal to the Alpha hosts, but not to the Betas or the symbionts. We could even say that the problem was unique to Odan - we saw in TNG's "The Schizoid Man" that using the transporter causes a degree of shock to the body's systems and that very ill people cannot use it because of this reason. It's not at all clear if Odan's inability to use it was intended to be a general peculiarity of the Trill species, or if Odan himself was sick enough that he personally could not use it. Either way this explanation can explain away the problem.
We can also assume that the pouch is a peculiarity to the Alpha hosts, and that the joining process is somewhat different - the Alphas apparently have weak minds, or some chemical difference in the brain or something, which means that their personality is submerged by the symbionts. The Betas, on the other hand, seem to suffer from no such problems.
The apparent difference in the number of Trill joined cannot really be explained by this theory. We just have to assume that the joined Trill are regard as such a vital aspect of Trill culture that the whole species calls itself joined even though the vast majority are not.
If we do go with this option, we need to explain why so few of the Alpha hosts are ever seen. I would suggest that they make up a very small percentage of the population - 10% or less.
Option 3 : It's just a TV show, stupid!
Of course there is the old fallback position - mistakes are just that, and anybody who has the time and effort to spare to put a lot of thought into this kind of thing really needs to go out and get a life. I mean, if we aren't careful people will go creating huge websites about this kind of stuff, and where would it all end? I tend towards Option 2, and that is the assumption I went with whilst writing the Trill species entry on this site.
So much for the species; let's talk about Jadzia!
Jadzia has had eleven joinings with ten distinct hosts for periods ranging from decades to hours. In the episode "Facets" Jadzia carries out a procedure that transfers the personality of each past host into one of her friends so that she can talk to them and learn more about them. It's an excellent source of information on the past life of Dax, the kind of episode we overly-fanatical types love! In order, then :
|Lela||A gentle, somewhat motherly type, Lela was a politician.|
|Tobin||Very shy and introverted, Tobin was a genius mathematician who created a very clever proof of Fermat's last theorem. Much of Jadzia's scientific knowledge comes from Tobin.|
|Emony||Emony was a gymnast. She would often stand on her head to help her think. Emony once met and had sex with Doctor McCoy, some time before he became a doctor.|
|Audrid||Audrid we don't know much about.|
|Torias||Torias was a test pilot. Daring and brave, he was killed in a shuttle accident only six months after being joined.|
|Joran||Joran was joined after Torias, but proved to be mentally unstable and murdered at least one person. The symbiont was removed and the memories of the ordeal suppressed by the Symbiosis commission to cover up knowledge of how easy it is to join a symbiont to an unsuitable host.|
|Curzon||Curzon was a diplomat who appears to have mostly dealt with Klingons. He was something of a mentor to Ben Sisko, and was renowned as a hell raiser.|
|Jadzia||Jadzia was, obviously, the character we saw through most of DS9. Beautiful, fearless and intelligent - what a combination!|
|Verad||Verad stole the Dax symbiont from Jadzia in "Invasive Procedures" and implanted it within himself. Sisko was able to recapture Verad within a few hours.|
|Jadzia||Naturally, after Verad was captured Jadzia regained the symbiont. She retained all of Verad's memories afterwards. Jadzia was killed by Dukat in "Tears of the Prophets".|
|Ezri||After Jadzia's death, the symbiont itself was on the way back to Trill when medical problems meant that it had to be implanted immediately. Ezri was the only available host, and so had to take the symbiont completely unprepared. It was a rather daunting experience for her.|
|"It's funny... it's been almost four years since Curzon died, and I still miss the old man."|
|"Commander I don't know what you're talking about."|
|"I'm talking about the fact that eighty six years ago the symbiosis commission mistakenly gave the Dax symbiont to Joran Belar."|
|"According to our information, he was joined to the Dax symbiont for six months."|
|Dax||The symbiont was born in 2018. This would assume that Sisko's statement that Dax was 356 in 2374.|
|Lela||Joining date uncertain - possibly around 2060. Death date uncertain, possibly around 2145.|
|Tobin||Joining date uncertain, possibly around 2145. Death date uncertain, but probably around 2230 - 2244.|
|Emony||Was, err, 'compatible' with teenaged McCoy around 2245. Probably joined sometime around 2230 - 2244. Death date uncertain, but sometime between 2245 and 2284.|
|Audrid||Joining date is uncertain, but between 2245 and 2284. Died 2284.|
|Torias||Joined 2284, died after six months in 2284 or 2285.|
|Joran||Joined 2284 or 2285, stayed joined for about six months before being removed in 2285.|
|Curzon||Joined in 2285, died in 2367.|
|Jadzia||Joined 2367; unjoined briefly in 2370 before being returned.|
|Verad||Joined in 2370, for just a few hours.|
|Jadzia||After being rejoined in 2370, remained with the symbiont until her death in 2374.|
|Ezri||Joined 2374, remained joined at the series end in 2375.|
|Yellow text = Canon source||Green text = Backstage source||Cyan text = Novel||White text = DITL speculation|
|Copyright Graham Kennedy||Page views : 17,306||Last updated : 1 Jan 1970|