The Romulans were a humanoid race from the planet Romulus. The Romulans were biological cousins of Vulcans, descended from those who rejected Surak's reforms during the Time of Awakening.
In the opening segment, in regard to the enemy vessels, Spock declares "Romulans now using Klingon design!" Several explanations/theories have been advanced as to why the Romulans use Klingon ships. The real reason is simply because the original Romulan model ship was gone.
Why do Romulans and Klingons both have birds of prey?
As originally conceived, the Klingon variant of the Bird-of-Prey was actually a Romulan ship; the script of Star Trek III at first called for the film's main villains to be Romulans using a Romulan Bird-of-Prey, as had been typical of Bird-of-Prey use in Star Trek: The Original Series.
The Romulans and Vulcans descend from the same ancestor species — specifically, the Romulans are an offshoot of ancient Vulcans. From the Star Trek history we know, it's unclear when the split between the two occurred, but it was likely during Vulcan's war-torn period of history.
Romulans Anatomy - Are Romulans Better Species Than Vulcans? What Are Terrfiying Romulan Diseases?
Are Romulans just evil Vulcans?
In fact, Romulans share a common ancestry with Vulcans and are considered an offshoot of the same species. They have pointed ears and arched eyebrows, and possess great strength, intelligence, and longevity. The Romulans diverged from their Vulcan counterparts centuries ago due to ideological differences.
Although any further details would be purely speculative, it fits with the established canon and timeline that the ancient Romulans could've started experimenting with artificial life forms, accidentally created the Borg and realized the terror their experiments had given rise to.
They also had an alliance with the Klingons until a series of incidents including the Khitomer Massacre.. A Romulan attack on the Khitomer Colony that out of 4,000 settlers left only two survivors, one of them being Worf of the Enterprise-D. Klingons passionately hated the Romulans and considered them their nemesis.
Legend holds that the basis of Romulans' fixation on deception and the hiding of secrets is the unusually high proportion of mimetic (camouflage-using) native animals and plants that the first settlers of Romulus found on arrival, snakes that look like flowering vines, flowers like lizards, mammals that alter their ...
While Klingons are normally shown to be the strongest of all species within the Star Trek franchise, they are surprisingly weak when compared to the Vulcans. This is another perfect example of how Star Trek subverts expectations, hoping time and time again that raw power is not what gives a person power.
In 2357, Worf entered Starfleet Academy. He graduated in 2361 and was commissioned with the rank of ensign, becoming the first Klingon officer in Starfleet. Although Worf took immense pride and a sense of honor from serving in Starfleet, most other Klingons shunned and belittled his choice of vocation.
What is the difference between a Vulcan and a Romulan?
In contrast to the Vulcans and their peaceful logic-based culture, the Romulans are shown to be very military-focused, ruling an emotion and war-driven empire. The relationship and ancestry between the two physically similar, but culturally opposite, species is shrouded in mystery.
The resulting tongue was named Rihan, with the Romulans' name for themselves being Rihannsu in Duane's novels, meaning "the Declared", in reference to their decision to secede from Vulcan society.
Memory Alpha notes that there is no canonical maximum estimate for Klingon lifespans, but several Klingons are known to have exceed a century, and some may have made it past 150 (earyh) years. That makes them pretty comparable to 24th century humans.
In the Star Trek episode “Balance of Terror”, why did Spock say that nobody knew what the Romulans looked like ? Because no one did know what the Romulans looked like. They took off in the days before the Vulcans had warp drive, and then no one ever heard of them again (well, until the obvious anyway.)
The Klingon Warrior rebelled against his Borg programming to join the resistance movement that helped the USS Voyager fight the Collective in "Unimatrix Zero". However, aside from individuals like Worf and Korok, there has never been a widespread Klingon offensive against the Borg Collective.
Klingons are known to have sexual relations with humans, with the character B'Elanna Torres being an example of a Klingon-human hybrid; Torres' mother is a Klingon.
The forced merging of the humans and the mostly decayed Caeliar results in the creation of the first Borg. The gestalt group mind is perverted to become the collective, driven by Sedin's desperate hunger and need to add the strength, technology, and life-force of others to her own.
The episode first aired in broadcast syndication on May 5, 1989. It was written by executive producer Maurice Hurley and directed by Rob Bowman. "Q Who" marked the first appearance of the Borg, who were designed by Hurley and originally intended to appear in the first season episode "The Neutral Zone".
This makes Human/Vulcan or Human/Romulan mix canon, but only if the parents had genetic assistance. The exception would be Klingon/Romulan, which is a canon hybrid (ask Paramount how that was able to take place). Some sentient hybrids include: Cardassian/Bajoran.
