General Informations - The Trills

Trills are one of the very few joined species known in the Alpha Quadrant. Two separate intelligent species have evolved on the Trill homeworld - the hosts are a humanoid species who have two distinct races. The first, or alpha race, comprises approximately 10% of the Trill population; they are distinguishable by their pronounced foreheads, but in most respects their physiology is similar to that of the beta race who comprise the remaining 90% of the population. These are easily identifiable by a pattern of skin markings which extend from the forehead down the side of the face and all the way down the body. Both of these races are known as the Trill Hosts.

The second species is known as the Symbionts. These are relatively small, sluglike creatures who live underwater for most of their life. The Symbiots are extremely long lived and very intelligent, but lack any kind of limbs or tool-using ability.

Some thousands of years ago the Trill began living as a joined species - the Hosts developed the ability to physically join with the Symbionts, linking their nervous systems together. The effects of this are different between the two races of Host; with the alphas the Symbiot totally submerges the Hosts personality upon joining, but they tend to be less physically robust than betas. For this reason betas are the preferred recipients in the joinings.

Betas become physically dependant on the Host within 93 hours of the joining. After a joining the two separate minds merge, forming a new personality. This can cause severe psychological problems if the two minds are incompatible, resulting in rejection which often causes the death of the Host. After the death of the Hosts the Symbiont is removed and placed into a new Host, carrying into the new joining all the personality and memories of the old.

Physical Specifics

Species: Trill
Affiliation: United Federation of Planets

Appearance:
Skin/Hair/Eyes Colour: Varies/Varies/Varies
Average Height (M/F): 180/170 cm (5'11"/5'7")
Average Weight (M/F): 70/60 kg (154/132 lbs)
Other: Pronounced forehead or skin markings which extend from the forehead to the rest of the body

Native Environment: Class M
Homeworld: Trill
Location: Alpha Quadrant

Medical Notes:
Life Expectancy (M/F): 115/122 years
Unusual Traits: Joined species