For Jadzia's zhian ' tara in the Facets episode, Curzon is temporarily embodied into Odo, with a unique result — a blending of Curzon's and Odo's personalities, not unlike the blending of a Trill symbiont with its host.

The Trill government attempted to blame the failure on Joran's unsuitability as a host, but the truth was that Joran had passed the host screening tests and was technically a stable host — as was almost half of the Trill humanoid population.

The appearance of Odan — Trill hosts who have no spots, but ridges on their foreheads — is also explained ( in the novel Forged in Fire, by Andy Mangels and Michael A. Martin ), where a strain of the Klingon Augment virus ( the disease responsible for the Human-like appearance of Klingons in the Original Series ) managed to infect a Trill colony when it was visited by Klingon traders.

As a Starfleet officer coming up through the ranks, Sisko was mentored by Curzon Dax, a joined Trill serving as Federation ambassador to the Klingon Empire, when the two were stationed aboard the USS Livingston early in Sisko's career.

During her lifetime, she rises to become the head of the Trill Symbiosis Commission and gives birth to at least two children, Neema and Gran.

The two meet again later in the non-canon novel Unity when Dax is in Ezri and Neema's symbiont Cyl is joined with a Trill enforcement officer Taulin.

With Dax in a new host too, the two maintain a strained working relationship since Trill societal rules prohibit the re-association of past hosts, the penalty being a permanent exile from the Trill home world.

A symbiont who is neither implanted into a new host nor returned to their habitat ( pools of nutrient-rich liquid on the Trill homeworld ) will quickly die, as will a joined Trill host within one to two days of the symbiont being removed.

* Trill ( Star Trek ), two symbiotic races of aliens in the fictional Star Trek universe

Tartini, two years later, tried to reproduce the sound in his Devil's Trill Sonata.

Originally the script called for Dr. Kahn to be played by a male actor, but it was changed because the producers felt that the audience would understand the Trill taboo being violated if it involved two women.

However, by reuniting the two Trill would be violating a Trill taboo against re-establishing relationships of past hosts.

It was originally assumed that only a small fraction ( 0. 01 %) of the Trill population was capable of being joined, a myth that the Trill government continues to perpetuate.

Trill are strongly allergic to insect bites, because the toxins interfere with the biochemical connections between host and symbiont (" The Siege ", DS9 Season 2 ).

Outside of questions of reproduction, many inter-species relationships were seen, including those between a Human and a Trill, a Human and an Elaysian, a Human and a Betazoid, a Human and a Deltan, a Human and an Orion, a Klingon and a Trill, a Klingon and a Ferengi, a Ferengi and a Cardassian, a Ferengi and a Bajoran, a Bajoran and a Changeling, and several others.

The music which I at this time composed is indeed the best that I ever wrote, and I still call it the " Devil's Trill ", but the difference between it and that which so moved me is so great that I would have destroyed my instrument and have said farewell to music forever if it had been possible for me to live without the enjoyment it affords me.

No explanation of the change is ever given in any series where they appear, but according to an article on startrek. com, Trill are actually more than one host race.

In some cases, the aliens already look much like Humans-in the Star Trek franchise, in the 133 years before their participation in first contact in 2063, no fewer than six Vulcans spent significant amounts of time on Earth ( though none were " invaders "-three were shipwreck survivors, the other half time travelers, in the company of at least one Human, from a future where their respective worlds were political allies ), and were able to pass themselves as Human simply by using hair or hats to conceal their pointed ears ; likewise the Bajoran Kira Nerys needed only to put a Band-Aid on her ridged nose, while at the same time the Trill Jadzia Dax was able to pass off her natural spots as tattoos.

During this time, Baton Rouge made its mainstream entrance through rappers of Trill Entertainment, a label started by Pimp C. The most prominent artists from this label are Webbie, Lil Boosie, Foxx, and Mouse on the Track.

Ezri was a young and inexperienced officer had been joined to Dax when the symbiot's health seriously declined on route to the Trill home planet and a new host was required to save it.

On her homeworld, she visits the " Caves of Mak ' ala ", a place on Trill where unjoined symbionts swim in pools carefully and lovingly tended by Trill Guardians.

Joran Dax ( born Joran Belar ) is a noted musician on the Trill planet and is chosen to host the Dax symbiont after the untimely death of the previous host, Torias.

However, the symbiont becomes gravely ill during its journey on the Destiny and, as the only Trill on board, Ezri is asked to join with Dax in order to save its life.

Following a mission on the Trill homeworld, she and Bashir end their romance but decide to remain close friends.

Trill society has a taboo against resuming relationships with loved ones from one's past joining, on the principle that each life must be unique (" Rejoined ", DS9 ).

* 1997 Gracious Trill ( 婉啼 ) on Farewell Zhang Ju ( 再见张炬 )

However, when Odan, in the female host, attempts to continue their relationship, Dr. Crusher is uncomfortable, knowing both that the Trill appear to have no preferences on gender orientation, and that Odan will continue to live on in any number of hosts ' bodies.

* Divided We Fall ( John Ordover and David Mack, September – October 2001 ): 4-part comic book miniseries published by WildStorm Comics featuring the characters of both Star Trek: Deep Space Nine and Star Trek: The Next Generation dealing with a crisis on Trill.

** Volume 2: " Unjoined " ( Trill ) and " Fragments and Omens " ( Bajor ) ( Andy Mangels & Michael A. Martin ; J. Noah Kym, February 2005 ): Ezri Dax and Julian Bashir face unrest and revelations on Trill ; the station crew encounters new challenges as Bajor integrates into the Federation.

While trying to save Odan in sickbay, Dr. Crusher comes to learn that Odan is a Trill, a species which symbiotically lives within its host's body.

Star Trek: The Next Generation saw the introduction of Starfleet's first Klingon officer, and other races such as Bolians, Betazoids, and Trill were seen and given more central roles in later series ; some of these, notably Klingons, had been shown as enemies in earlier episodes.

The crew's general unfamiliarity with the race is a minor contradiction with later episodes, which stated that the Trill ( such as Curzon Dax ) had been working with the Federation regularly long before their first appearance in Star Trek: Deep Space Nine ; " Trials and Tribble-ations " implied that a host of Dax was romantically involved with Leonard McCoy when the original Star Trek series character was still a college student.

In 1987, it was redefined to consist of the southern part of the Regional Municipality of Sudbury ; the geographic townships of Cartier, Cascaden, Foy, Hart, Harty, Hess and Moncrieff and that part of the geographic Township of Trill not within the Town of Walden in the Territorial District of Sudbury ; Wahnapitei Indian Reserve No. 11 ; and Whitefish Lake Indian Reserve No. 6.

Farrell starred as Jadzia Dax, the space station's Starfleet science officer ; a character from an alien species known as the Trill, who is host to a 300-year-old symbiont and can draw upon the memories and knowledge of the symbiont's seven previous hosts.

* The Original Four Seasons and the Devil's Trill Sonata: The Classical Album 3 ( UK: 9 November 1998 ; US: 9 March 1999 )

* Devil's Trill ( arc ; tankōbon 2 ).

The Trill, Verad, applied to be " joined " and was rejected ; now he wants the Dax symbiont.

In the first appearance of Trill in the TNG episode " The Host ", Trill were unable to be transported, once joined with a Symbiont.

When talking about herself, Lela says she was one of the first women to be elected to the Trill legislature.

In the first appearance of Trill in the TNG episode " The Host ", Trill were depicted physically quite differently than their later appearances.

The Trill naming style, of using their host name as a first name and their symbiont name as a surname, differs from their first appearance, in which the Trill Odan was only known by that one name.

*" The Host " is the first appearance of a Trill, although in a somewhat early version.

Trill female Jadzia Dax ( Terry Farrell ) gave fans the first romantic same-sex kiss in Star Trek television.

While Dax mentors her first Trill initiate, a proto-universe threatens to destroy the station and Bajor.