Andorian

The Andorians were a humanoid species from the moon Andoria, capital world of the Andorian Empire, and were one of the founding members of the United Federation of Planets.

Physiology
Most Andorians had a distinctive blue skin and white or silver-colored hair. A sub-species of Andorians known as the Aenar had white skin; unlike the blue Andorians, the Aenar were blind and telepathic. Andorians and Aenar were genetically compatible and could produce offspring.

Andorians had a higher metabolism than Humans. Andorians were very susceptible to high temperatures, an Andorian could lose 10% of its body weight in as little as two days in climates approaching the boiling point of water.

Because of the unusual physiology of the Andorians, intravenous injection was impossible; instead a doctor must opt for inter-muscular injection.

Antennae
Andorians had on their heads two knobbed antennae which were used for balance. An Andorian was partially disabled and unable to fight immediately following the loss of an antenna, but was able to compensate this within a day or so. The antenna itself could take up to nine months to regrow on its own, although the regeneration could be completed in around half that time with electrical stimulation and cranial massagetherapy. The loss of an antenna was a humiliating experience for an Andorian to come to terms with.

Antenna movement apparently expressed feelings as well. An Andorian would sometimes point their antennae at a potential mate to signify attraction.
 * It is not known if this was a voluntary or involuntary response.

Society
Andorians were a militaristic warrior race. This was underscored by the fact their weapons had no stun setting. Service in the Andorian Imperial Guard was considered honorable and military ranks had a great influence on social reputations. However, Andorians never fought without reason, and deplored dishonesty, though they were capable of duplicity. Andorians considered their race to be deeply emotional and passionate, and although they were not known for their charity and have few sympathies they placed a high value on family.

As a key member of the Federation, Andorian Ambassador Shras represented Andoria at the Babel Conference in 2268, at which it supported the admission of Coridan as a new member of the Federation.

In 2286, the Andorians held two seats in the Federation Council.

An Andorian served on the ruling council of the pocket dimension Elysia, during the late 23rd century. It was unknown how long his species had been trapped in that universe.

Traditions and Culture
A crucial part of Andorian tradition was the so called ushaan, a code of honor demanding a duel to the death in which the combatants fight against each other with a ice miner's tool, the ushaan-tor. An enormous body of rules and regulations existed around this code of honor, summing up to 12,000 amendments. The Ushaan could be demanded by someone as a means of personal vengeance, e.g. to avenge a personal loss. However, there existed a right of substitution, allowing each combatant to put up a replacement for themselves. Furthermore, each married combatant could postpone a duel indefinitely, if there were no children to continue his claim. Additionally, the fight might be called off, if one combatant disabled the other in way so he could not continue the duel.

If a member of the Andorian Imperial Guard died far from home, his or her companions carried a part of the body back to the ice of Andoria.

Andorian weddings were known to usually require groups of four people. Andorian females seemed to have an equal position in Andorian society, being at least as capable a soldier as their male counterparts.

Andorians also seemed to have an artistic side, as Yanas Tigan, mother of Ezri Dax, imported hand-painted Andorian tiles for her Solarium in 2375. The Andorian Academy was considered by many to be the best art school in the Federation.

Cultural products

 * Andorian blues
 * Andorian chest
 * Andorian jewelry
 * Andorian silk
 * Andorian tile

Food and Beverages

 * Andorian ale
 * Andorian fast food
 * Andorian tuber root
 * Andorian redbat
 * Andorian boiler
 * Andorian cabbage soup

People

 * List of Andorians

Appearances

 * The Orginal Series
 * The Animated Series
 * Star Trek Movies:
 * Star Trek: The Motion Picture
 * Star Trek IV: The Voyage Home
 * Star Trek V: The Final Frontier
 * The Next Generation:
 * Enterprise
 * Star Trek Fan Films:
 * Starship Exeter

From Memory Alpha -- the free Star Trek reference