Species list.

Asari

The asari, native to the planet Thessia, are often considered the most influential and respected sentient species in the galaxy, and are known for their elegance, diplomacy, and biotic aptitude. This is partly due to the fact that the asari were among the earliest races to achieve interstellar flight after the Protheans, and the first to discover and settle the Citadel.

A mono-gender race, the asari are distinctly feminine in appearance and possess maternal instincts. Their unique physiology, expressed in a millennium-long lifespan and the ability to reproduce with a partner of any gender or species, gives them a conservative yet convivial attitude toward other races. Favoring compromise and cooperation over conflict, the asari were instrumental in proposing and founding the Citadel Council and have been at the heart of galactic society ever since.

Turian

Known for their militaristic and disciplined culture, the turians were the third race to join the Citadel Council. They gained their Council seat after defeating the hostile krogan for the Council during the Krogan Rebellions. The turians deployed a salarian-created biological weapon called the genophage, which virtually sterilised the krogan and sent them into a decline. The turians then filled the peacekeeping niche left by the once-cooperative krogan, and eventually gained a Council seat in recognition of their efforts.

Originally from the planet Palaven, turians are best known for their military role, particularly their contributions of soldiers and starships to the Citadel Fleet. They are respected for their public service ethic—it was the turians who first proposed creating C-Sec—but are sometimes seen as imperialist or rigid by other races. There is some animosity between turians and humans, largely due to the turian role in the First Contact War. This bitterness is slowly beginning to heal—as shown by the cooperation of the two races on the construction of the SSV Normandy—but many turians still resent humans, and vice versa.

Krogan

The krogan are a species of large reptilian bipeds native to the planet Tuchanka, a world known for its harsh environments, scarce resources, and overabundance of vicious predators. The krogan managed to not only survive on their unforgiving homeworld, but actually thrived in the extreme conditions. Unfortunately, as krogan society became more technologically advanced, so did their weaponry. The end result is that they destroyed their homeworld in a nuclear war that reduced their race into primitive warring tribes.

With the help of the salarians, the krogan were "uplifted" into galactic society, and lent their numbers and military prowess to bring an end to the Rachni Wars. Ironically, after the rachni were eradicated, the rapidly-expanding krogan became a threat to the galaxy in turn, starting the Krogan Rebellions and forcing the turians to unleash the genophage. This genetic "infection" dramatically reduced fertility in krogan females, causing a severe drop in births secondary to prenatal and postnatal death and, ultimately eliminating the krogan's numerical advantage.

Salarian

The second species to join the Citadel, the salarians are warm-blooded amphibians native to the planet Sur'Kesh. Salarians possess a hyperactive metabolism; they think fast, talk fast, and move fast. To salarians, other species seem sluggish and dull-witted, especially the elcor. Unfortunately, their metabolic speed leaves them with a relatively short lifespan; salarians over the age of 40 are a rarity.

Salarians are known for their observational capability and non-linear thinking. This manifests as an aptitude for research and espionage. They are constantly experimenting and inventing, and it is generally accepted that they always know more than they are letting on.

Quarian

The quarians are a nomadic species of humanoid aliens known for their skills with technology and synthetic intelligence. Since their homeworld Rannoch was conquered, the quarians live aboard the Migrant Fleet, a huge collection of starships that travel as a single fleet.

Approximately three hundred years before the events of 2183, the quarians created the geth, a species of rudimentary artificial intelligences, to serve as an efficient source of manual labor. However, when the geth gradually became sentient, the quarians became terrified of possible consequences and tried to destroy their creations. The geth won the resulting war and forced their creators into exile. Now the quarians wander the galaxy in a flotilla of salvaged ships, secondhand vessels, and recycled technology.

Geth

The geth ("Servant of the People" in Khelish) are a race of networked artificial intelligence that reside beyond the Perseus Veil. The geth were created by the quarians as labourers and tools of war. When the geth became sentient and began to question their masters, the quarians attempted to exterminate them. The geth won the resulting war, and reduced the quarians to a race of nomads.

The history of the geth's creation and evolution serves as a warning to the rest of the galaxy of the potential dangers of artificial intelligence and to the legally enforced, systematic repression of artificial intelligence throughout galactic society.

Kett

The kett are bipedal digitigrade humanoids with a skeleton containing 332 bones. Dense formations of bone also grow externally on their bodies, taking the form of armor-like extrusions on their arms, legs, torsos, and heads, and according to Dr. Lexi T'Perro these feel as strong as a krogan's frontal plate. These bone structures vary in shape, size, and location depending on the type of kett. Their eyes are pale white and receded. Kett blood is brownish-green.[1]

There are no visible distinctions between "male" and "female" Kett of the same type. Kett have very low-pitched voices, and those who have marginally higher voices are generally considered female.

The Kett possess no reproductive organs, and they reproduce only through an artificial process called an exaltation. It is speculated that exaltation arose long ago in Kett history when their genetics reached a point of stagnation, leaving the species unable to breed through natural means. The Kett began adding beneficial genes from other species into their own genome in order to continually improve themselves, which they refer to as harmonization. Kett mastery over genetic manipulation enabled them to develop a serum to rapidly convert other species into obedient kett, which became the basis for exaltation.

Angara

The angara are warm-blooded mammals. They have a similar leg structure to a quarian, a salarian or a kett, along with relatively broad shoulders and narrow waists. They have two black eyes with blue irises, a single pair of nostrils, and folds of flesh on the sides of their heads that extend to their chests.

Angara hands have the bone structure for five fingers, but the final three fingers on each hand are densely webbed together into a single digit. Their feet have a similar build: five "toes", of which three are fused together and one appears to be an opposable "thumb", giving the impression they stand on hands.

Angara are sexually dimorphic: male angara are taller than females, and females have wider hips and rounder faces. Skin colours feature various shades of blue or mauve, sometimes shading into green or tan. Their blood is deep blue in colour. Their voices are slightly distorted, comparable to drell or Prothean samples.

???- "You know, at this point, if the demon gets us, and rips out our little skulls, and...and takes off our backpacks, and then humps us with his big... demony... butt!"

???- Ally or not, if you have a death wish, I will be happy to oblige."