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Drennik, a Vissian male

The Vissians were a highly advanced (by Human standards in the 2150s) humanoid species native to the planet Vissia in the Vissia system.


Vissian script

Vissian script

Vissians were distinguishable by crescent-shaped, segmented ridges circling the eye at the temple. Unusually (for Human standards) the Vissians had three genders: male, female, and cogenitor. The third gender, cogenitors, made up only 3% of the population and were treated as inferior, existing only for facilitating reproduction between males and females.

Vissians were able to read, learn, and retain large amounts of new information much more quickly and easily than Humans.

History and technologyEdit


A nameless Vissian cogenitor

The Vissians claimed to have developed warp drive around the 12th century.

In the 2150s, Vissian space travel utilized superior warp core and sensory technology compared with Humans. They were also using photonic weapons, rechargeable with sarium microcells.

The Vissians claimed to have developed a polymer composed of over two hundred natural elements. At that time Humans were only aware of 92.

At least one ship type was capable of withstanding temperatures higher than 1,100 degrees to withstand exploration within a stellar corona. Their stratopods were able to pass through the hydrogen layer of a hypergiant.

The Vissians offered to modify Enterprise's sensors to detect nucleosynthesis.

The sudden introduction of photonic torpedo technology by Starfleet (apparently unknown to Malcolm Reed in the episode, yet installed on Enterprise only four months later as seen in ENT: "The Expanse"), might possibly be attributed to technological exchange between Earth and the Vissia following the first contact.

Culture and philosophyEdit

Vissian cuisine

A standard Vissian meal

Vissian appreciation of food was based on aroma rather than taste. Of Human foods tried, they tended to like varieties of cheese.

Vissians were more forward and liberal than Humans were with regards to copulating. They preferred to have sexual intercourse first before continuing a relationship.

Vissians tended not to travel far, believing that there was sufficient exploration close to their homeworld: this is the reason why they had not expanded particularly far from their homeworld, despite possessing warp drive far longer than Humans had. Their primary goal was to meet new species. They were willing to share their technology with the Enterprise.

Despite being unknown to Humans and Vulcans by the 22nd century, their language was immediately picked by the Enterprise's universal translator. (ENT: "Cogenitor")


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