Namekian

Namekians are a species of magical and philosophical humanoid slug-like warrior organisms with green skin, antennae, and a powerful regenerative ability.

Physiology
Namekians have green skin and antennae. Patches on their arms seem to indicate age; younger Namekians have pink arm patches, while elders instead have a dull orange coloration. Namekians are asexual and therefore gender differences is unknown to them. Due to their asexual existence, any and all Namekians can reproduce by spitting out an egg through their mouth. These young are not genetic copies of the parent, despite what one might expect from an asexual race; rather it appears that the parent has some control over what type of child will be produced. This can be taken to the extreme, with the newborns able to come out mutated and not closely resembling others of their species.

They are unique in that they only require water for sustenance. They have evolved on a world with three suns, with at least one up at all times, and therefore night is also unknown to them.

Their physiology grants them a wide variety of abilities, many of them magical in nature; however, since these abilities are mostly seen being used by important individuals and not civilians, it is unknown whether these techniques are common to the species or to the individual. It seems likely that the vast majority of these abilities are restricted to the fighter caste Namekians as opposed to the sage caste, as none of the normal Namekians have ever been seen displaying the abilities when facing a crisis such as Furiiza's invasion.

Historical Background
At some point in the not-too-distant past, the Nameks were a well-known spacefaring race; this is determinate as the Saiyans who first arrived on Earth immediately recognized Piccolo as a Namek. This would have been an extremely unlikely circumstance if their species were only a primitive farming culture on a single planet. Other evidence of this is a small space capsule (with Namek-language voice recognition) that was sent to Earth with one of two Namekians prior to the genocide that was soon to occur.

One generation ago in Namek's past, a great tempest nearly eradicated the entire Namekian race, leaving only two survivors. Of these two, one remained on Namek to slowly repopulate the planet, while the other was sent to safety on Earth. Within one generation, just over 100 Namekians existed on their homeworld; at the same time, only a few existed on Earth.

Unfortunately, prosperity was not to occur for their species, and their world was soon invaded by the evil Changeling Furiiza, who had come to search for the planet's Dragon Balls. At the same time, a number of Saiyans, Half-Saiyans, and Humans arrived to stop Furiiza's forces, which eventually resulted in the complete destruction of Namek and a second near-extinction of the Namekian race. This was done as a last-ditch effort to kill the now-Super Saiyan Son Goku in their battle, as while Furiiza's species can survive in the vacuum of space, Goku's species cannot. By this time, most Namekians had already been killed by Furiiza's forces, but those who remained were temporarily transported to Earth by the Namekian Dragon. Once there, they lived for nearly a year before traveling back into space to resettle on a new homeworld, dubbed New Namek.

List of Abilities

 * Awakening Potential: An mystical ability shown to be used only by Saichoro, this ability allows the user to raise the power level of individuals by awakening their potential. This is not just a normal power boost, as it makes the person as powerful as they possibly could be at that point in time, assuming that they are not already at that level.  The technique will not work on those who are already "at their peak".
 * Body Flexibility: Namekian limbs are extremely flexible. They can elongate not only their arms but their legs at will. With considerable effort, they are even capable of growing many times their natural size.
 * Enhanced Regeneration: Namekians are extremely resilient and are capable of healing themselves and regenerating body parts instantaneously, so long as their brains are intact. Unfortunately this does not amount to complete invulnerability, as it takes an incredible amount of reserve energy to perform this task, and it is actually possible for a Namekian to die with his body more or less intact after battle.
 * Fission: A single Namekian can split into copies of itself. Each copy can read the mind of the other, and their soul seems shared - therefore, if one dies, so does the other.  Through this, it can be determined that Namekian Fission is not a perfect fission, as the two are in all considerations still one being.  There is a way around the dual death - if one half was to die but spawned another Namekian, the other half would continue to remain intact. This could be considered the reversal of Namekian Fusion.
 * Fusion: Namekians have a form of inverse reproduction where they are able to permanently join themselves with others of their race. For this to be done, one of the Namekians serves as the base and foundation and gains the skills, memories, and many of the personality traits of the other.  While there is no definite description as to what happens to the soul of the absorbed Namekian, it has been hinted that it will simply remain within the body until said body perishes or that, at least, the personality and memories are to some extent present within the host being.
 * Increased Lifespan: Namekians live for long periods, with documented cases of members living to be several hundreds of years old before finally passing on.
 * Kaifuku/Healing: Some Namekians possess the ability to heal others from virtually any injury.
 * Ki Manipulation: Namekians are more adept at manipulating their chi than humans, granting them enhanced strength and super speed, as well as the art of flight and the ability to shoot concussive blasts.
 * Object Creation: Namekians can create items such as clothing completely out of thin air. It is likely that this ability is what they use in their most potent skill: the creation of Dragon Balls.  With that in mind, only members of the "Dragon Clan" are capable of creating these mystical spheres, but it is unclear whether their creation is a learned skill or an innate ability, as Kami created them based on a sort of racial memory.  Due to the style of this ability, it is likely a type of sorcery.
 * Sensitive Hearing: Namekians' sense of hearing is far greater than that of humans. The outer ear structure gives them this heightened sense.  This can be a double-edged sword, however, as high-pitched sounds such as whistling can be irritating to the Namekian, to the point of causing them pain.
 * Sensitivity to Evil: Namekians can sense the presence of evil in a power level where most others could only sense the magnitude.
 * Sorcery
 * Soul Control: For some reason, some Namekians can manipulate the very soul of beings. This has been shown to include the ability to prevent the souls of those killed from going to the afterlife, thereby forcing them to remain in limbo for eternity; it has also been shown to allow the user to incarnate his soul into another being, essentially possessing them.  It should also be stated that in Namekian fission, the soul seems to be shared between the two new Namekians, and if one of them die, the other will perish as well.
 * Telekinesis & Telepathy: Some Namekians have been witnessed having the ability to lift heavy objects with their minds, while still others can communicate to their offspring telepathy despite their planetary location.

Trivia

 * The name "Namek" is derived from the word namekuji, which means "slug" in Japanese.
 * In the manga, the Namekians' hands have four fingers per hand, while the anime their hands have five fingers, similar to a Human's.