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1513
M-113 Creature
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Planet: M-113. The last of a vaguely humanoid species sometimes referred to as the "salt vampire" because of its need for salt and its willingness to kill to satiate its own hunger. The creature...

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1533
Thasians
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Planet: Thasus. An advanced, intelligent, noncorporeal race of beings, first encountered on stardate 1533.6 when they made contact with Captain Kirk to retrieve a young humanoid they had given...

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1709
Romulans
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Planets: Romulus and Remus (aka Romii). Until stardate 1709.2 when the U.S.S. Enterprise NCC-1701 under the command of Captain James T. Kirk had an unfriendly run-in with a Romulan ship. Very...

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2254
Talosians
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Planet: Talos IV Humanoids dependent upon illusion; their civilization was nearly wiped out by war thousands of centuries ago. They are only now beginning to rebuild.

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2534
Ekosians
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Planet: Ekos. A humanoid race at war with a neighboring planet, Zeon. Ekosian society was based on World War II-era Nazi Germany on Earth due to a miscalculation by a Federation cultural observer...

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2821
Regulan Blood Worm
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Origin: unspecified. This amorphous, pulpous creature rates such a low status to the Klingon people, that name is used to insult people who are thought to be weak. The Klingon, Korax uses this...

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3018
Ornithoids, Extragalatic
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Origin: extragalactic. Slight beings only inches tall, alien to human-type emotions but capable of matter manipulation with a replication/transporter technology dubbed "transmuter" which is used...

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3045
Gorn
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Origin: unknown. An intelligent, bipedal reptilian species who fought with Captain Kirk on stardate 3045.6 under the assumption that the Federation was threatening the Gorn claim to the planet...

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Metron
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Planet: Cestus III An extremely advanced humanoid species who intervene in Captain Kirk's battle with the Gorn on stardate 3045.6. Being surprised at the mercy Kirk shows to the Gorn, the Metron...

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3196
Horta
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The Horta is a highly intelligent, silicon-based species, that is capable of tunneling through solid rock ike humans are able to walk through air. Discovered on the planet Janus IV, the Horta is...

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3198
Organians
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Planet: Organia. On first appearance, a simple agrarian humanoid race that had no significant advancements for over 10,000 years. On stardate 3198.4, the true nature of the Organians revealed an...

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3211
Providers
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Planet: Triskelion. Members of a species who apparently were humanoid in appearance, but eventually evolved into disembodied brains due to their devotion to intellectual abilities. Three such...

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3219
Companion, The
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An intelligent entity composed of noncorporeal energy in the forum of a sparkling cloud. It is apparently female gendered, and very inviting when ex-Federation scientist Zefram Cochrane (inventor...

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3497
Capellans
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Planet: Capella IV. A moderately primitive humanoid society based on tribal leadership and strong codes of war. Led by a high male tier, their customs and traditions forbid shows of cowardice, and...

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3614
Argelians
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Planet: Argelius II. Despite the hedonistic nature of the natives of Argelius II, their planet has long been known as a friendly shore-leave spot for Starfleet — even after the murderous...

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3689
Halkans
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Planet: name unspecified. Both in the mirror universe and in our universe, the Halkans are a humanoid species renowned for their commitment to absolute peace.

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3842
Andorians
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Planet: Andoria. Humanoid Federation members are blue-skinned in appearance, with bilateral antennae that reflect their emotional state, and characteristically white hair. Andorians are...

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Orions
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Green-skinned humanoids, the most notable of whom are the so-called "green Orion animal women," females who seem to be mere slaves but actually wield a preternatural influence over humanoid males...

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Tellarites
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Planet: Tellar. A humanoid species distinguished by a porcine-like snout, stout build, deep set eyes and a characteristically irascible disposition. The long-time United Federation of Planets...

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4187
Kzinti
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Also known as Kzin, the Kzinti are a race of sentient feline carnivores native to the planet Kzin. Kzinti are highly sexually dimorphic, at least in terms of intelligence; only the males are...

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Slaver Empire
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A galactic power that held sway over virtually all sentient life in the Milky Way Galaxy approximately one billion years ago, the Slaver Empire and its subject races were wiped out in a colossal...

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4211
Mugato
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Planet: Tyree's planet An indigenous simian-like beast, carnivorous, with characteristically white fur, a rhino-like horn on the top of its head, and sharp and extremely venomous fangs.

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4307
Amoeba
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Origin: space. A giant single-celled creature which resembles an Earth amoeba but is magnified millions of times. This space-roaming entity threatened to consume all life in the galaxy until it...

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4372
Elasians
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Planet: Elas. A fierce humanoid warrior culture at war for years with the neighboring planet of Troyius until both cultures achieved the technology necessary to wipe both themselves and their...

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4385
Megans
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Each person on Megas-Tu is a specialist in a specific kind of magic, and while the satyr-like Lucien says there are no rivals, "generalists" such as himself are branded as troublemakers. The...

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Melkotians
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Origin: Melkotian space. (Also referred to as Melkots, stardate 4385.3), a telepathic species, non-humanoid, which appears as a disembodied head and neck whose eyes are literally two shining...

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4523
Tribble
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Origin: unspecified. A small animal characteristically soft, furry, and pleasing to most humanoids (with the exception of Klingons). Tribbles give off a soft purring sound that is...

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4598
Iotians
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Planet: Sigma Iotia II Highly intelligent and imitative humanoid species who model their social practices after a single Federation book that was left in the Iotian's possession before...

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4657
Kelvans
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Planet: Kelva. Humanoid in appearance, the Kelvans' true appearance remains a mystery and remains unexplained. As refugees of a galaxy poisoned by heavy radiation, the Kelvans have assumed...

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4978
Rigelian Hypnoid
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A six-legged creature with purple fur, a long tail, and yellow eyes and claws. About the size of a medium-size dog, the Rigelian hypnoid can project simple illusions, and speak. In 2269 (stardate...

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Rock Creature
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A giant monster seemingly made of brown stone, the "rock creature" is encountered on an uncharted planet by Captain Kirk, Mr. Spock, Nurse Chapel, and conman Harcourt Fenton Mudd in 2269 (stardate...

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Ursinoid
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A race of bipedal creatures, ursinoids have brown skins, and resemble a cross between an ape, and a bear, with a dog-like snout. Both male and female ursinoids work as heavy metal miners on the...

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5121
Vians
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Origin: unspecified. A technologically advanced humanoid race with enlarged cranial cavities, capable of injuring their subjects by magnifying the power of their own thoughts. On stardate 5121.5,...

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5143
Vendorians
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A race of sentient shape-shifters native to the planet Vendor. In their natural form, Vendorians look rather like floating orange lamps adorned with six trailing tentacles. Because of their...

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5275
Dramians
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Native to the remote planets of Dramia and Dramia II , the Dramians are tall creatures who have a vaguely humanoid appearance, with yellowish skin, bulbous fish-like heads with large craniums, and...

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5329
Glommer
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A predator that feeds on tribbles, a glommer is larger than the average hand, and has a reddish four-legged body. Each leg has two joints, and the foot pads have four toes. The glommer also has...

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5371
Cosmic Cloud
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A sentient, spaceborne entity that stretched across eight hundred thousand kilometers of space, with a width of about four hundred thousand kilometers. The creature's length measured roughly twice...

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5373
Le-Matya
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This native animal to planet Vulcan is a large, mountain lion-like desert predator with a poisonous bite . It is capable of killing Vulcans and sehlats.

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Sehlat
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A large, bear-like animal native to Vulcan, sehlats typically possess six-inch fangs. Although sehlats can be ferocious in the wild, Vulcan families frequently domesticate them as pets. Spock had...

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5476
Fabrini
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Planet/Asteroid: Yonada. The Fabrini are an ancient humanoid race whose ancestors built a traveling "world" called Yonada to save their descendants before their sun went supernova.

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5499
Aquans
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The race of sentient humanoids living beneath the waters of the planet Argo are unknown to the Federation prior of 2269. When the crew of the U.S.S. Enterprise investigates the world, its officers...

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Sur-Snake
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A large scarlet colored sea beast on the planet Argo, the sur-snake has four long tentacles ending in flippers, a pair of yellow eyes, a dorsal fin, and fangs. When a Federation aquashuttle is...

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5501
Lactrans
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Giant creatures that resemble slugs, the orange Lactrans each have individual reddish markings on their backs and faces. They have two yellow eyes and a trunk which ends with three grasping...

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Maravel Dragons
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A flying, screeching creature indigenous to Maravel, and apparently resistant to phaser fire. When Captain Kirk and his landing party are on Lactra VII in 2269 (stardate: 5501.2), Kirk remarks...

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5521
Edosian
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A tripodal, polytheistic race from the planet Edos. An Edosian has three legs, three arms, and three fingers on each hand and foot, with orange skin and a bony face. Lt. Arex is Edosian. Edosians...

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Magnetic Organism
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An intelligent, noncorporeal life form consisting of coherent magnetic fields, sometimes manifesting itself visually as a luminous green cloud. A malevolent magnetic organism inhabited the dead...

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5554
Phylosians
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Sentient plant people native to the planet Phylos, the Phylosians of the twenty-third century are heirs to a civilization that is long past its prime — a civilization they wish to see...

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Swooper
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A large, ferocious, birdlike flying creature that is actually a motile plant, like much of the life on its native planet Phylos. Swoopers typically measure more than five meters in length, and...

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5577
Gossamer Mice
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Test animals used in the medical laboratories of the U.S.S. Enterprise in 2269. Because these small, rodent-like extraterrestrial creatures are nearly transparent and are extremely sensitive to...

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Halo Fish
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Alien fish that bear a resemblance to terrestrial angelfish, except for the bright halo of multicolored light they emit. Because halo fish lose their colorful illumination in response to any...

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Terratins
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The descendants of the human settlers of the only planet orbiting the star Cepheus, the Terratins were shrunk to a few millimeters in height by the strange spiroid energy waves that suffuse the...

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5591
Pterodactyls
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Flying reptiles which existed from Earth's Triassic period to the end of the Cretaceous period, pterodactyls are properly called "pterosaurs." In 2269 (stardate 5143.3), when the starship...

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5630
Medusans
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Planet: Unspecified. A species of highly intelligent noncorporeal beings whose sensory systems differ radically from humanoid sensory systems.  This makes the Medusans particularly well...

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5683
Skorr
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A race of avian creatures, the Skorr are a fierce and proud race who were once great warriors with advanced military technology and the ability to breed vast armies rapidly. According to Vulcan...

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Vedala
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According to Federation records, the Vedala are the oldest known spacefaring civilization. One representative of the Vedalan race is met in 2269 (stardate: 5683.1), by Captain Kirk and Mr. Spock....

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5710
Scalosians
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Planet: Scalos. Humanoids who exist in a hyper-accelerated state due to overexposure to radiation.

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5906
Excalbians
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Planet: Excalbia. Sentient rock creatures whose planet is normally a bed of molten lava and deadly to humans. The Excalbians are capable of shape-shifting, and use this ability to experiment on...

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6063
Capellan Power-Cat
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The fierce Capellan power-cat hails from the planet Capella IV. Untamable, it will discharge 2,000 volts of electricity if even touched by another creature. Only a hypo with tranquilizer at its...

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7403
Eggling
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Because Pandronians are hatched from eggs, Commander Ari bn Bem compared himself to an "eggling" — a newly hatched Pandronian youngster — to express how humbled he felt on stardate...

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Pandronians
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A light-green-skinned race of humanoid-appearing creatures native to the planet Pandro. Unlike virtually all other known humanoid species, however, Pandronians are actually "colony creatures"...

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44356
Breen
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Planet: name unspecified. A humanoid species from a cold planet who operate in a politically non-aligned manner and are reputed to be aggressive, with outposts in Sector 97. It is presumed that...

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45761
Kriosians
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Planet: Krios. The tall, slender humanoid members if this species share similarities in their skin pigments — a dark-spotted, skin pattern along the hairline and down the neck and spine...

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46379
Bajorans
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Planet: Bajor Humanoid race, distinguished outwardly only by extra wrinkles at the bridge of the nose, have wandered the galaxy and settled on various worlds ever since their homeland was...

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Cardassians
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Planet: Cardassia   Tall, long-necked, humanoid in appearance, marked by several bony protrusions and ridges: one from the shoulder to under the ears, whose bottom lobes in turn are more...

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Changeling
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Origin: Gamma Quadrant Little is known about this strange race. They call themselves Changelings, a name adopted from others' use. The Changelings are the highest order in a Gamma Quadrant...

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Ferengi
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The homeworld of the Ferengi species is Ferenginar. The Ferengi have a culture which is based entirely upon commerce. They follow a code of conduct known as "The Ferengi Rules of Acquisition."...

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Frunalian
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Origin: the Alpha Quadrant. An alien species which took an early scientific interest in the discovery of the Bajoran wormhole near the Deep Space Nine space station. This species has also...

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Prophets
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Origin: Bajoran wormhole According to Bajoran religious doctrines, the prophets are the spiritual protectors and guides to the Bajoran peoples. Throughout Bajoran history, several unusual...

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Symbionts, Trill
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Only 300 symbionts are available for hosting each year on average. If a host is weak, the personality of the symbiont will overwhelm it. Unless its current Joined Host objects, a prospective Host...

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Trunkhead Aliens
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Planet: unspecified. Commonly seen in Federation faciliities such as DS9. A dull brown-skinned race with pointed upswept ears and a long, trunk-like, fleshy protrusion from the back of the skull...

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Wormhole Aliens
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Origin: The Bajoran wormhole. Non-corporeal, non-linear telepathic race who built the wormhole adjoining Bajor some 10,000 years ago and worshiped by the natives there as "The Prophets" because of...

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46401
Joranian ostrich
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Planet: name unspecified. An alien ornithic species with an extremely fearful disposition. Fear has developed notable evolutionary flaws in the species; if frightened, the Joranian ostrich is...

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46410
Wadi
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Origin: Gamma Quadrant Space-faring and game-loving humanoid race (pronounced "WAH-dee") from an unspecified planet whose people are the first formally known to be contacted from the Alpha-Beta...

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46421
Garanian Bolites
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Extremely small creatures which act as irritants when they come into contact with humanoid skin, as two unsuspecting Bajorans learned due to a trick played on them by Jake and Nog in 2369.

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46495
Hunters
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Origin: unknown planet in the Gamma Quadrant. A humanoid race who live to pursue the Tosk in an endless life-and-death hunt, never contacted again after a single incident on DS9 in 2369 soon after...

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Tosk
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Origin: Gamma Quadrant A reptilian race, bred by unspecified eugenicists to enjoy being hunted and provide as exciting and interesting a chase as possible. They live only to outwit their Hunters...

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Vulcans
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Planet: Vulcan A humanoid race, with copper-based blood, slightly green-tinted complexion and notably pointed ears, they are responsible in a large part for the founding of the Federation. Over...

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46531
Verathans
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Origin: the Gamma Quadrant. A humanoid race (pronounced "vuh-RATH-uns") whose civilization reached its height 30,000 years ago, spanning over two dozen systems interconnected with a highly...

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46578
Yridians
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Planet: name unspecified. This wrinkly-skinned alien species famed as information merchants was known to the Vulcans before humans, at least in the altered but impermanent future during Archer's...

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46594
Kobliad
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Origin: unspecified planet near the Bajoran system. Dying humanoid space-faring culture near the Bajoran system (pronounced "KOH-blee-add") who use Federation-supplied deuridium to stabilize their...

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46649
Dolbargi
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A culture capable of a self-induced death-simulation technique that is teachable to and usable by others, including Hupyrians and Ferengi — as servant Maihar'du taught Grand Nagus Zek.

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Hupyrians
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Planet: name unspecified. A tall, facially-wrinkled, white-skinned, mute, humanoid species, many members of whom can be found working for important Ferengi officials because the Hupyrians have a...

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Tarahongians
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Planet: name unspecified. A people (pronounced "tair-uh-HONG-ee-uns") who are naturally gullible — at least according to Quark, who shrugs off Grand Nagus Zek's praise at selling their...

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46715
Altorans
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Origin: unknown. Rumored to be traders with the Miradorn species.

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Miradorn
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Planet: name unspecified. A race (pronounced "MEER-a-dorn") in which all are twins who make up a single self as two halves of one being — a "quarrelsome people," according to Quark. Natives...

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Rakhari
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Planet: Rakhar, Gamma Quadrant. Humanoid race distinguished by heavy ridges down the nose and full heads of bushy hair. Aware and unafraid of space-farers, they cared little about outside contact...

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Vanoben
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Planet: name unspecified. The otherwise nondescript home (pronounced "van-NOBB-un") of a transport ship raided only two light years from Deep Space Nine, when an artifact similar to one being...

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46729
Dal'Rok
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Planet: Bajor. A unique creature made of energy that is fabricated for five days of every year by the Bajoran Sirah to place two opposing villages against a mythical creature and thereby continue...

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46753
Ennis/ Nol-Ennis
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Origin: Gamma Quadrant. Two humanoid factions of the same species who fought for so long they were banished to a prison moon to continue their fighting, able to finally die only if they escape the...

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46844
Carnivorous Rastipod
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Origin: Bajor. An animal reputed for a distinct lack of grace — apparently, a beast with two left legs.

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46853
Beneriam Hawk
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Planet: name unspecified. A predatory ornithoid life-form to whom Chief of Security Odo was compared on stardate 46853.2.

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Gunji jackdaw
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Origin: Alpha Quadrant. A species resembling an ostrich, spotted on Deep Space Nine's Promenade on stardate 46853.

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46910
Argosian
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Planet: Argosia. An alien species, one member of whom once threw a drink in Commander Sisko's face and nearly caused a brawl to break out.

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Klaestronians
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Planet: Klaestron IV. An advanced space-faring humanoid race that is distinguishable in appearance by an ear ridge that comes forward to the eye, raising the hairline over the ear. The world was...

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46922
Kaleans
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Origin: unknown. An unfriendly group of this race (pronounced "CAL-ee-uns"), once confronted Curzon Dax and Commander Sisko on Rochani III.

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Saltah'na
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Origin: Gamma Quadrant. An ancient race (pronounced "sul-tu-NAW") that was entirely destroyed by a massive power struggle. The events were described in a telepathic archive contained in energy...

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Valerians
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Origin: unknown. This humanoid space-faring race of the Alpha Quadrant delivered weapons-grade dolomide to the occupying Cardassians on Bajor and were suspected of still doing so in 2369 at DS9,...

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46925
Arbazan
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Planet: Arbaza A humanoid race (pronounced "ARR-buh-zahn"), mostly distinguished in appearance by a high forehead hairline. The word is used as both the adjective and with "the" as the noun for...

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Avianoid Aliens
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Members of this unspecified humanoid species distinguished by white, shaggy hair and a beak-like mouth continuing up into a Klingon-like forehead ridge are seen frequenting DS9. One wealthy native...

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Bolians
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Planet: Bolarus IX A Federation race of humanoids, most distinguishable in appearance by the narrow yet distinctive ridgeline running at least from over the skull from the spine to the nose and...

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