[citation needed] The most significant Aenar character in Star Trek is Hemmer, the first Chief Engineer on the Enterprise in Strange New Worlds.
One of James T. Kirk's earliest commendations is the Palm Leaf of Axanar Peace Mission, following the Battle of Axanar; However, the exact nature of the conflict is unrevealed; it is revealed in the episode "Whom Gods Destroy" that Starfleet Captain Garth of Izar achieved a great victory on behalf of the Federation, and his strategies became required reading at Starfleet Academy (since Kirk himself studied these strategies, the Battle of Axanar must thus have occurred well before Kirk entered Starfleet Academy in 2250, which was itself almost 20 years before "Whom Gods Destroy").
(As shown in the film Star Trek: Insurrection, however, the Ba'ku still possessed some form of technology and the ability to use it in emergencies since they had attempted to repair the damaged Data.)
At first, the Ba'ku were unaware of the metaphasic radiation in the planet's rings, which caused their aging process to decelerate significantly, although it was later discovered and cherished.
They assimilate any species they come into contact with for either biological aspects (for example, Talaxians would be incorporated for their dense physical structure, helpful in producing solid and resilient drones) or technological aspects (a species that has developed advanced engines or weaponry would be a sufficiently desirable target for assimilation) all in an attempt to improve further the overall perfection of the Borg as a whole.
El-Aurians appear outwardly identical to humans and have a variety of ethnic types, with both dark- and light-skinned members of the race being shown in various Star Trek movies and television episodes.
[16] Although the Klingons look very human-like in the original series, they underwent a design change for The Next Generation, explained in the show as a massive genetic alteration that added the iconic ridged foreheads.
[21] The Kzinti are feline warriors that appear in the TAS episode "The Slaver Weapon", who originated in Larry Niven's Known Space universe.
[22] The Lanthanites were introduced in the person of Chief Engineer Pelia in the first episode of the second season of Star Trek: Strange New Worlds.
The male Nacene, known as the Caretaker to the Ocampa, led the endangered species through tunnels into a vast underground city constructed especially for them.
By the late 21st century, the female Nacene, called Suspiria by the Ocampa, had decided to leave her mate to seek out "more interesting places."
Under Suspiria's guidance, these Ocampa colonists developed their mental talents and eventually created technology capable of increasing their natural life spans to as much as twenty years.
Tanis also told Kes that the Ocampa could join Suspiria in a subspace layer called Exosia, which he described as a realm of pure thought.
In the novel Q Strike, the Organians appear to observe a battle between members of the Q Continuum and other seemingly omnipotent beings from the Star Trek universe.
The original Q identifies them after being asked by Captain Jean-Luc Picard who they are and is rather dismissive, remarking that "compared to their code of noninvolvement, your Prime Directive is practically an incitement to riot."
[8] Romulans are humanoid extraterrestrials that appear in the Star Trek television series, where members of their race often serve as antagonists.
Once members of the neo-luddite race the Ba'ku, the Son'a were exiled from their home planet by their fellows for trying to overthrow the leadership and embracing more advanced technology.
[14] Tellarites appeared rarely in the TNG-era shows, but on Enterprise they are a significant part of several episodes, becoming one of the founding species of the United Federation of Planets.
Still, the common ground gradually emerged as the crew of the Enterprise discovered that the Xindi were being manipulated into this hostility by the Sphere Builders.
During the thirteenth live-action film in the series, Star Trek Beyond, the Xindi were mentioned along with the Romulans as aliens that humanity fought wars against in the years leading up to the formation of the Federation.
In desperation, the Insectoids and Reptilians detonated several charges beneath the eight most enormous seismic fissures of the geologically unstable planet Xindus, leading to its destruction and, ultimately, the extinction of the Avian race.
This was ultimately rejected by the Xindi Council (the Reptilians went ahead with the bio-weapon but were eventually foiled), so they worked on a weapon to destroy Earth.
In Star Trek Beyond, Krall, formerly Captain Balthazar Edison, is mentioned to have fought the Xindi and is enraged by the idea of making peace with them and other enemies such as the Romulans.
These aliens were also similarly revered by the Trianon, who believed that deities, which they called "The Makers," constructed the spheres to transform the expanse into a paradise.
With the help of Captain Archer's evidence of future cooperation, the Xindi Council began to split over the issue of whether the Guardians were the real enemy.
With the help of the Guardians, the Reptilians and Insectoids then took control of the finished Xindi weapon and set on a course for Earth, thus triggering a new civil war.
Sunken warships are enormous, and one of them was depicted carrying the Enterprise NX-01 to Earth inside a chamber within the vessel after the Xindi weapon was destroyed.
Egg sacs are suspended from ceilings, and tubules connected to them spray chemicals that cause passersby to reverse imprint on the hatchlings, protecting them as a parent would.
In the episode "Stratagem," Archer learned from Degra that a colony of Primates resides on Azati Prime, where the weapon was being constructed.
Aided by trans-dimensional beings, the Reptilians also traveled to 2004 to collect blood samples for their bioweapon in the future but were foiled by Jonathan Archer and T'Pol.