NOX

Planet of Origin: Gaia

The Nox are an advanced and peaceful humanoid species, capable of reviving the dead and rendering objects as large as their own city invisible. The Nox are considered to be a member of the "Alliance of Four Great Races", along with the Ancients, Asgard, and Furlings. They are known to be one of the oldest species that inhabit the galaxy though very few know of them. 

Physically, they resemble primitive humans with a faint gray skin color as well as grass-like hair from which branches and leaves grow. The Nox tend to wear primitive clothing with colors that combine gray to gray-blue to violet and scarlet. They appear slightly shorter than average humans with a slight build; they often present an unassuming façade which belies their capabilities. The species are strict vegetarians; getting their nutrition from fruits, vegetables, roots and other natural foods found in the forests of the natural world.

The eldest of the species can reach the age of 500 years with children reaching maturity by the age of 18 years. Once a Nox reaches adulthood, their aging slows down to an almost imperceptible rate. Only during the last two centuries of a Nox's life do they begin to appear old but this also belies their true age.

The Nox are an extremely intelligent and perceptive race that are able to perform complex arithmetic in fractions of a second. They possess an astounding ability to comprehend and retain information with near perfect memories.They make use of the five senses that Humans use but they are far more acute when compared to Humans allowing them to pick up on details and subtleties around them that others would miss entirely. This provides the Nox with abilities that border on extra-sensory perception due to their perceptive nature and heightened senses. In addition to this, the Nox possess the innate ability to tune into the bio-electrical fields within other beings, in a sense "reading" them at a level far beyond normal senses. They are capable of also channeling their natural heightened perception into a number of extraordinary abilities that include the ability to learn languages after hearing them spoken for only a short time, a mild form of mind reading that allows them to detect nearby surface thoughts, and the ability to heal others. With the latter,  the Nox are capable of completely healing the most severe of injuries and even resurrect the recently deceased so long as the tiniest amount of molecular activity as well as bio-electrical energy remains within the body. In order to accomplish this ritual, there is a minimum requirement of three Nox to perform the intense and focused concentration which interrupts their ability to use their technology. They also can render extremely large objects invisible and insubstantial.

 The race has a symbiotic relationship with nature and, in particular, the forests of the world as well as the living beings that occupy it be they animal or plant. In the view of the Nox, all beings contribute to and receive from the universe. This view prevented the Nox from allowing their technological advances to compromise the natural beauty of their environment of their world. Nox scholars long ago discovered that "life", the energy that keeps all beings alive, is in essence a dynamic energy myriad of other energy fields that exist outside the physical form. The Nox believe these external energy fields comprise the "life force" of their planet and the universe itself. In their view, these individual fields, also known as "consciousness" to the people of Earth, exists with an external field with each working with the other one.

The Nox practice philosophy of absolute pacifism and non-violence that is so strict that they refuse even to defend themselves when threatened. Should a Nox find themselves in such a situation, they tend to typically hide through the use of their stealth technology or simply use their technology to remove the aggressors along with their weapons. This policy is so strict that others within their domain are forced to obey their rules of policy of pacifism when necessary. Should visitors attempt to employ violence against one another, the Nox remove their weapons as part of their rules.

The Nox race highly value freedom; both for themselves and for the others. They refuse to infringe the rights of others for free choice except where such individuals choose to make use of violence or war-like ways. As such, the Nox accept no authority except their own and thus refuse to allow others to impose their views on others.

Isolationist and non-interventionist in the extreme, they feel morally obligated to help both sides of an argument, no matter if one side is thoroughly evil.  They will not even fight to protect themselves, however with their ability of rendering objects invisible and resurrecting their dead, fighting is unnecessary.

The Nox  rarely use their advanced technology,  which  includes the ability to create the effect of invisibility, to build floating cities, and to activate the stargate by thought alone. preferring to live in a simpler state with nature. For transport, they seem to mainly rely on Fenri are a large, flying species indigenous creatures that may appear to be hostile to strangerbut mostly keep to themselves.

Source: Stargate Universe. (SG1: "The Nox") (SG1: "The Fifth Race") and Stargate wikia entry.