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Nidoran Line

This article is in rewriting process as of September 2013 and awaiting for changes post X/Y release.
Content may change strongly in the future.

Morphs [Oak Catalog #]

  • Nidoran♀ [#029]
  • Nidorina [#030]
  • Nidoqueen [#031]
  • Nidoran♂ [#032]
  • Nidorino [#033]
  • Nidoking [#034]

The Nidoran or collectively “Nido” family of Pokémon, consisting of the very distinct Nidoran female and Nidoran male, and their evolutions, are among the weirdest - yet most common - Pokémon that can be commonly observed in the wild. The basic morphs, simply called Nidoran are shaped as rabbit-size quadrupeds with very short and uniform fur, of pinkish colouration in the male and blueish in the female, that covers the entirely of their bodies; except for their poisonous traits they don't exhibit any particularly unique feature that makes them notable among most Pokémon. The females have red-irised eyes while the males have dark eyes. The basic morphs have short legs that end in two-clawed feet, also sport long ears, rigid whiskers and notorious sets of spikes on their backs: a dorsal row in the male and two side-by-side columns in the female. The female's spikes can be lowered when she needs to curl or get inside a den.

Nidoran have a picky sense of touch and very good hearing, two tools that constitute their primary means of communication with others of their species. The younger morphs move by walking or hopping around short distances while the adult forms slowly but steadily roam across the landscape.

These Pokémon are highly resourceful and organized in the wild; they live in large colonies and individuals of the species can learn attacks from a variety of other Pokémon inhabiting their area, such as Ice or Electric long-range attacks.

Nidorina and Nidorino are the adult forms; they share the same overall physiology traits of their younger forms but augmented and specialized for battle, such as larger general builds and larger protective spikes. The short fur of the younger morph collapses back unto the skin to form strands of quills, while the skin itself is replaced at some points by darkened scales that give both forms a distinct patched pattern. The female grows extra rear spikes that protect her hindside, and her ears become rounder and easier to turn around to inspect the surrounding area.

It is at this stage that the greater physiological differences exist among the male and female morphs, for instance: Nidorina's rounder and sleeker build allows her to stand on her hind legs and use her forepaws for protection, whereas the more rigid body of the male greatly difficults tasks such as curling or getting away by small holes or passages. Nidorina familiar with individuals outside its own line may retract their barbs to avoid causing unwanted injuries, something that Nidorino can not do.

Two superior evolutions exist, called Nidoqueen and Nidoking; these are notoriously different from their preevolutions, for reasons yet to be fully understood, in such fundamental aspects as being bipedal instead of quadrupedal and replacing all the soft skin by scales, looking more similar in their body build to high Ground-type morphs such as Aggron§Physical Description. The section titled “Royal Evolutions” further expands on them.

Nidoran are dangerous creatures for several reasons, only starting with their venomous bodies which thanks to a substance continuously produced gradually acquire poisonous traits during their lifetime. The poison itself is produced by intermuscular glands in the underskin of a Nidoran, located across the belly and underside as well as all four legs and covered by highly sensitive pressure receptors. The glands produce a substance that corrupts the transportation of enzymes in the prey organism or in an eventual predator, greatly felling their metabolism; they also produce a crystalline substance sensitive to heat in which the actual venom is encased.

When the skin of a Nidoran is grazed, the muscle layers expand and contract forcing the poison glands to release the substance via a set of canals that bathe the base of the spikes and some patches of exposed skin in their belly and legs. The venom sticks to the body thanks to the crystalline substance and is naturally collected at hotspots commonly called “poison points”. Due to bodily heat and friction that occur during battle, the chemical encasement breaks, allowing the venom to be easily transferred to the opponent as the Nidoran makes contact, or even worse, manages to open a deep wound in its opponent.

Nidoran also have another set of glands in their head which produce a different kind of poison. In the female this agent is delivered to the fangs and whiskers, giving it a venomous bite necessary to immobilize weakened prey; in the male it is delivered to their large forehead horn instead, which is used in direct combat to pierce through the opponent's defenses and directly infect the foe's muscle tissue and/or blood vessels.

The overall Nidoran physiology, with thick legs, large ears and back spikes, protects the morphs from aerial predation from a young age and constitutes them as strong direct fighters. Conversely, it gradually affects their balance and ability to defend their flanks and makes particularly hard for the adult morphs to move in crowded spaces.


Nidoran is one of particular species which, due to idiosyncrasies in their study and discovery, have gone through a series of alternate nominations throughout history. This section explains the most important nominations, their origins and consequences.


  • Official Name: Nidoran; Nidoran♀ (female) and Nidoran♂ (male).
  • Common Name: “Poison rabbit”
  • Catalogue Name: Poison Pin Pokémon
  • Binomial Name: Veneumeumonasteriense diminituvius (lit.: “small venom-monster”).
  • ASCII-7 reduced name: “NidoranF” or “Nidoran-F” for females, “NidoranM” or “Nidoran-M” for males.

When the first versions of the Pokédex were revised with remote gender identification tools but before merging of the entries was first discussed, plaintext databases added the suffixes “F” and “M” (for female and male) and additional code in order to maintain differentiation in the catalogue, a choice which preserved already established stable sorting of the data and held back bugs during the rushed development that followed; the unrelated “infertile Nidorina” bug (section “Courting and Childrearing”) managed to slip by still.

However as this solution would break internationalized translations, the Universal Codes Consortium decreed that the glyphs ♀ (for “female”) and ♂ (for “male”) be adopted where uniqueness was required, following the trend of preexisting usage in regional catalogues; this solution retained stable sorting and matched the visual flow of information in next-generation Pokédexes, and as such became the official denomination for the younger morphs to this day.


  • Official Name / Common Name: Nidorina (female), Nidorino (male).
  • Catalogue Name: Poison Pin Pokémon.
  • Binomial Name: Veneumeumonasteriense trux (lit.: “ferocious venom-monster”).

Nidorina and Nidorino's denomination root has been lost to history due to the suddenly widespread usage of localized gendered morphemes "-a" and "-o". Still, in certain contexts where unique naming is required, they are collectively referred to as “Nidorino”, and in chat rooms and forums they might be collectively referred to as “Nidorin@” in a manner similar to the FanNickname of later catalogued Latias and Latiosreference pending (“Lati@s”).

Royal Evolutions:

  • Official Name: Nidoqueen (female), Nidoking (male)
  • Common Name: Poison Drill Pokémon; Royal Nidos.
  • Catalogue Name: Poison Drill Pokémon
  • Binomial Name: Veneumeumonasteriense atrox (lit.: “horrible venom-monster”).

Again different to the previous morphs, Nidoqueen and Nidoking have enjoyed a fairly stable denomination thanks to the patriarchal/matriarchal imagery and regal quality that they projected in ancient history, which earned them the names they hold to this day.

The term “Veneumeumonasteriense” that identifies this species was apparently coined by the chronist Crowt R. Ôbot, who during the early stages of the catalogue reengineering pioneered the movement to standarize Pokémon names via what eventually became a tightly-defined taxonomy.

Notable Biology

Nidoran exhibit high gender dimorphism when compared to similarly common species - this dimorphism exists to a degree that in early history, before the worldwide efforts to recatalogue species differences at microscale (such as Illumise and Volbeatreferences pending), they were believed to be two related but different monogendered species. Even in this current age, due to a need to maintain backwards compatibility with the older and vastly-limited "iPhokéx" products as required by law, current Pokédexes issued for Trainers still enumerate both genders of Nidoran as different species.

Nidoran produce two distinct kinds of toxic agents: the first one acts as an enzymatic disruptor and makes their body highly poisonous, whereas the other is a blood-damaging venom. The production and effect of their natural agents is highly specialized to the point that Trainers can develop completely different strategies for each gender and evolutionary stage.

The poison is produced in glands across a Nidoran's back and belly underskin, as well as near the whiskers and the rear spikes in the female, whereas the venom is produced and delivered by organs in the head. Toxicity is also specialized: whereas the female's natural poison is very strong (known to kill even the males as the “Courting” section shows), a well-fed male can produce venom almost continuously to the point that he needs to dispose of it regularly by rubbing their horn against bark or rocks.

Even the delivery method is specialized: whereas the poison is released by bodily heat and intended to be either transferred on touch to the opponent's wounds, or deposited in the body of Nidoran during their lifetime, the venom contains free-acting cells similar to cnidocytes that infiltrate the blood stream and actively attack oxygen carrier cells.

Some cases of inverted pigmentation have been rarely observed (pink female, blue male), which counted among the first hints for early observers of the species and as later evidence for researchers who managed to prove that those morphs were, in fact, a single species. Alternate-coloured Nidoran do not present any other difference against normal Nidoran and the origin of this divergence has not been explained. Research indicates that slightly less than one in eight thousand individuals in a Nidoran colony may exhibit alternate pigmentation, and the trait does not seem to be inherited.

All moprhs of this evolutionary family continuously produce poison that is stored in their muscle and skin tissue, making the ones who die the older essentially inedible to almost all non Poison-type024§Diet›]] or Steel-type Pokemon, or in some cases Pokémon with high natural poison resistance such as Zangoose. The process itself is very slow and accelerates only upon evolution however, making younger morphs fair game for specialized hunters such as Scyther or Skarmory§Diet. Of particular note, the more experienced adult individuals are likely to be only barely above the diet of a Salamence§Diet and will cause the dragon an indigestion to remember for a couple of days.

The younger and adult morphs excel at two-dimensional fighting by design, although despite the extra toughness of their bodies Nidorino have many difficulties protecting their flanks and thus can be easily felled by a strong immobilizing hit. Standard techniques taught to the base morphs involve leering and growling for threatening, horn fencing, double leaps and kicks to quickly escape cornering, and baiting predators to even soil so that the Nidoran can band together and ram from all sides. Nidorina's strategy consists usually of clinging to her foe, ideally in groups, while Nidorino will attempt to ram the foe with their horn trying to reach the higher part of the legs or the back of the head, where for most competing species in their usual environment more blood can be drawn.

The higher forms's fighting strategy consists of essentially advancing towards their opponent without hesitation and then unleashing all their strength by thrashing around as they reach swiping distance; however they can also assist themselves with Hyper Beams and can stomp the ground causing shockwaves.

The Royal Evolutions

When exposed to the radiation of a Moon Stone, a Nidorina or Nidorino will undergo an egregious process of evolution – leading to the stages that have been named Nidoqueen and Nidoking. These forms are largely different to their pre-evolutions. They are bipedals whose body structure is closer to that of highly evolved dinosaur-like evolved Pokémon such as Aggron. The short fur that covered their bodies is replaced by layers of tinted, rough scale plates that alongside with the harder spikes and the thickness of their legs and arms, reveal a newfound, tremendous physical strength. Their bellies and chest are covered by scales as well, but these are larger, somewhat translucid and arranged in such a manner that they can overlap with each other when the Pokémon needs to stretch or curl.

The power that Nidoqueen and Nidoking gain in this stage is incredible and they are not afraid to show it, which has led to them earning something of a reputation. Tales of a Nidoqueen tackling and turning a military truck upside down or a Nidoking swinging his tail and tearing all trees ten meters around him from their roots are not only unheard of, but also relatively close to the truth.

For a yet unknown reason, the radiation of the Moon Stone triggers an additional process that modifies the microstructure of Nidoqueen's and Nidoking's skeleton and muscle tissue. This grants their bodies with roughness akin to that of Ground-type Pokémon at the cost of permeability, and for all intents and purposes Nidoqueen and Nidoking are classified as Poison/Ground type Pokémon.

It is revealing of the Royal Evolutions's battle prowess that Giovanni Terremoto, famed leader of a Ground-type Gym in the region of Kanto before his fall as the leader of FanonPokedex/TeamRocket, dedicated two chapters to these final forms in his only known written work, “Mysteries of the Earth”; the first chapter goes into great detail on how to train both forms as bodyguards, whereas the contents of the second chapter are unknown – they are believed to be dangerous to social order if read and executed by anyone with unscrupulous goals, and as such have been gradually expunged from any official record.

One particular trait lost upon evolution is their fertility; Nidoqueen becomes infertile, while Nidoking only remains “technically” fertile, with a production of reproductive material low enough that it can only rarely breed. The specific mechanics of this change and its meaning with regards to the Nidoran evolutionary process are unknown, although this may be related to their new typing. It has also been tested in laboratories that Nidorina's evolution into Nidoqueen is faster than her counterpart's into Nidoking for reasons that are believed to be related to the “consumption” of fertility as a chemical resource.

Of note is that due to a internationalization bug in early translations of the Pokédex Project's research papers, the breeding and fertility datasheets for Nidorina and Nidoking were swapped and published without change, registering Nidorina as infertile and Nidoking as picky. This mishappen was carried over to early iPhokéx and similar systems where it somehow lasted as an unfixed bug, and to this day there are some people who still believe Nidorina is actually infertile, perception cemented by the adult morphs's breeding practices (“Courting and Childbearing”).


Nidoran can be found roaming in the borderline and outer area of the larger grasslands. Small groups of individuals roam around a well-protected and hidden core or colony, consisting of as many as four hundred adults taking care of about thrice the amount of cubs, in a structure that can only be discovered by deep examination of the forest and mountain ecosystems adjacent to the grasslands.

Nidoran habitats can span areas as large as a city such as what happens in the region of Johto where they can be found in all the areas immediately east and north of Goldenrod City, despite the large size and agitated activity of the commercial metropolis.

While all the morphs of this species are adaptable to any grassland or forest habitat, and can manage to thrive even in semi-desertic habitats for short periods of time, they fare poorly in cold or extremely wet habitats and suffer from too limited movement in mountainrange environments.

The Royal Evolutions can further thrive in mountainranges however, but as they are so rarely seen in the wild, their actual habitat limitations are not thoroughly studied.


The members of the Nidoran faily are primarily herbivorous, gathering in large groups to eat grass and collect fruit fallen from trees, as well as berries. Given their fighting tendencies this fact proves to be surprising for inexperienced trainers. In contrast, they usually walk into rivers to drink alone, or accompanied by their single partner in the case of the adult morphs. They also welcome most wheat and plant-based food that humans provide for them, although they are for the most part picky enough to demand “collecting” that food by themselves.

A Trainer wanting to keep their Nidorina or Nidorino stimulated will usually hide packed balls of food near the plants or trees of the house, this so long as there are no Zigzagoon§Diet living in-house as well.

The adult forms are known to adapt their diet somewhat to eat what they kill, which is Rattata and some overconfident Spearow or Tailow who decided to divebomb ignoring the rows of spikes – with which Skarmory won't have trouble. This is however fairly uncommon and for the most part it only happens when the winter or the breeding season coincide with times of particular scarcity.

Nidoking and Nidoqueen need large amounts of berries and fresh fruit to maintain their strength, and trained ones will welcome protein-rich food too, which enhances their senses and reflexes.

Of note, morphs of this species will stubbornly reject to eat together with morphs of a different level, which is why in farms and reservations they are usually held and fed by morph groups and at different times of the day.


Nidoran and their evolutions, being Poison-type Pokémon, are inherently dangerous. They have a natural tendency to poke, scratch or bite any object they find in an exploratory manner, and from there kick, brush and ram against anything that they consider a hint of a threat – the more if it tries to attack back.

Given that Nidoran venom can cause both neurological and muscular damage, Trainers should always wear protective gloves and glasses as well as have antidote spray readily available among their resource pool if they plan to continuously handle members of the Nidoran species.

While preferred by kids and young girls, basic-form Nidoran are not trivial to handle, feed or carry; since the poison glands in their spikes and whiskers are stimulated by tactile pressure, incorrectly grabbing one may force them to inject poison in your skin or blood vessels. To correctly grab a Nidoran, it is important to give them some “warning” such as tapping the base of their neck – something that you won't see the mothers doing on TV since they don't need to. Try to never raise a Nidoran above the level of your head or hug them strongly if they haven't leapt upon you on their own accord, as they are easily impressionable for such feats of “strength”, and prone to react by thrashing around and trying to get back to safe ground by all means. Even then an experienced or angered Nidoran picked by a stranger distracted by the cuteness may as well try to free itself and leap to the nearest neck(s) with a ready bite and horn ram.

Being larger and generally meaner, Nidorino are more difficult to handle. Their larger and less flexible bodies are not well adapted to move with their Trainer among crowds (which would be dangerous to people around anyway) and they sometimes get stuck and start oozing venom out of stress. Thankfully, trained adults are very self-aware of the damage they may cause to you and will always move carefully in your presence as well as give you warning shouts or guiding nudges when you are moving around a Nidorina crowd; so unless they feel particularly displeased you will not run into "accidents" with them. Take into consideration that activities that they find “displeasing” irrevocably include being administered medication or undergoing medical checks, so leave those tasks to experienced medical personnel. When relaxed, the female morph is capable of tucking away its barbs and suppressing its poison to avoid injuring its allies but will raise its barbs reflexively when under stress.

A Nidoran's horn is no less worrisome than the large amount of spikes in its body. All forms will ram with incredible force, although it is the male who presents the most danger due to the fact that he will gleefully swing his head so that the horn pierces more and more organs while more and MORE venom is being poured into the victim's body. Adding to the damage from direct attack, all forms are capable of striking successively and with good and even increading precision. All this justifies why an adult Nido's horn must be blunted for it to be accepted in official competitions (see notes below on Nidoking, however, unless you enjoy the idea of having its horn rammed through your chest).

Dealing with Royal Evolutions

If you find yourself alone or unprepared against a wild Nidoqueen in a bad mood, it will be wise to remember that she mostly cares to prevent intrusion; check for the location of a source of food, or far more likely, a Nidoran den nearby and, once you find it, head away from that direction slowly, never turning your back on her and never halting, even if you trip or back against a wall or tree. Pay attention that Nidoqueen keeps giving you periodical warning growls to make sure that you keep doing what she says, as were she to stop doing so it means she knows herself away enough from the den that she can let out her violent impulses without further endangering the nearby cubs.

Were you to find yourself against a Nidoking in any mood (or worse, two Nidoking fighting), don't even wait for warning, just turn tail and make sure to put up any rough feature of the landscape as distance between you and him – even if that means choosing a ~30m leap to a wild river over turning and facing Nidoking directly. The longer they chase you, the more pumped their blood will get and the less likely they will be to abandon the chase. At this point we can only wish you luck, although were you to survive the adventure unscratched, we invite you to come to our main offices in [DATA EXPUNGED] so that we can archive your story.

Due to their strength and tenacity, a Nidoking's first horn thrust to hit is already a irrecoverable injury at least in theory. Thanks to Conference regulations this will not be the case for trained Nidoking, who are required to have their horns blunted for admission to tournaments. Unfortunately, this is something that Nidoking deems as the highest offense and humiliation; he'll react poorly to it which is why Trainers should not try on their own – any Nidoking undergoing such a procedure will most likely kill their own Trainer if anything less than the winner's trophy in a golden platter is achieved in the tournament, leaving only the most experienced Trainers who rely on periodic tournaments as a manner of training to have Nidoking gradually more accepting of the procedure.

Nidoqueen are not exactly less dangerous in battle, in particular if there are younger morphs nearby, which makes any caringness vanish the instant a Nidoran♀ starts crying for help. It is actually deemed an effective double battle strategy in underground circles to have a Nidoqueen trained with varied techniques to “just” send her out when another Nidoran is hurt, and let her do as she pleases.

That's not to mention what happens when both royal morphs are to be faced together. Stressed Nidoqueen naturally releases pheromones that suggest the younger forms to calm down and stay together, yet have the terrifying effects over Nidoking to incite them to unleash their anger against everything not Nidoran shaped in sight. Considering that the females are prone to cuddle and protect their and others' offspring and the males extend their territoriality to whatever a female seems to care about, it is somewhat of a dream's nightmare to have a well-trained Royal Couple, whose poisonous jabs and swipes will hurt even more than usual, suddenly appear when you are hunting some young morphs.

Courting and Childrearing

Both the basic forms and the adult forms (Nidorino and Nidorina) can breed, although their capacity to do so is largely different. The Royal Evolutions won't breed at all, and Nidoqueen is actually infertile as has been mentioned above. Young Nidoran will breed once a year, producing one or two cubs at a time; Nidorino and Nidorina are capable of breeding two times a year and maintaining a steady procreation rate of six or more cubs a year, however due to Nidorina's possessive demeanour towards her mate, they don't usually breed more than once a year (three years in extreme cases), to the point that before the introduction of hybrid helicameras produced by Kidd ShoutOut1Industries, it was widely assumed that Nidorina were mostly infertile and that the duty of growing the population was to the younger forms'. The long-carried bug in datasets served to early iPhokéxes and similar devices, that swapped around Nidorina and Nidoking's breeding capabilities, further widespread this particular characterization trait.

Nidoran mating rituals vastly differ by evolutionary stage as well. The basic forms, usually roaming around in sibling groups, pick potential mates and either invite them or drag them into seasonal private meetings of a manner much similar to that of human dating, with gifts and “serenades” included: this is one of the reasons why the media usually portrays them as lovebunnies and take commercial advantage from them. Such private meetings mostly consist of spending time together hidden behind a thicket, cuddling with each other and ocassionally playing pranks on nearby Pokémon or humans, as well as approaching nearby trees, dens or picniccers to steal some food. If the male has shown inventive, resiliency and battle prowess in such tasks the female may accept him as a mate for the breeding season.

In contrast, Nidorino will pack and take part in Battle Royales that start as displays of skill (mostly horn fencing and digging) and battle ability and end as wild beatings as the females gather around to observe. In all cases it is the female who will pick a male of her choosing, by waiting until her mark is tired after surviving many battles; she will then approach and SlapSlapKiss beat him into submission, leading him away and leaving him little to no option to comply to her desires in a round of final tests which most usually involve showing of their prowess in digging a new den, and sometimes in right out forcibly cleansing an occupied one.

Even if the Nidorino manages to pass the tests that the female and the rest of the environment have put upon his path, however, he may still succumb by claiming his prize, as sometimes the female may feel kinky enough to not lower her rear spikes when the male approaches her. At that point however, most Nidorino won't be in condition to care if they go OutWithABang, after which he will be too tired to leave. After the breeding, the couple stays together in the den or nearby, with the female keeping the male under watch far long after the cubs are born – and it is not rare for Nidorina to get her claws dirty on competitors or on her own mate if he ever decides to ignore her.

Sometimes sibling Nidoran will band together to wake up their parents, which will happen and will be probably the calmer moment of the day for the adults. And it will be even worse once they substitute their human Trainer as a motherly figure.

Social Childbearing

After a period of three months, the cubs are born, usually one in the case of the younger forms, but two or three in the case of the adults. The cubs are born bald and quickly grow fur and adapt to the darkness of their dens. After being fed by the mother for four days, the family separates temporarily with the males taken away by the father and the females taken with other newborn females under the watch of several Nidorina. The family stays together for the most part for the next half year, with the cubs learning the social skills under the care of the Nidorina at the core of the colony, while passing Nidorino will come from the outer circles to teach the young males the arts of battle.

As seen, parents in the wild will begin teaching their cubs to survive as early as four days old, and they will also get them used to be on their toes at all times any same-gendered Nidoran is around, always a potential contestant in their future. As a result of this, many members of the species grow to extend such rivalry to any foe whom they naturally perceive as of their same gender. The one notable exception is between Nidorino “buddies” as will be noted in the “Social Structure” section.

Nidoqueen and Nidoking are practically infertile, and even more, adverse to breeding, preferring the mutual “calm” company and the observation of their former offspring, if any, from afar; even with this they will still take part in seasonal courtship rituals with motivation currently unknown, although it is speculated that it is with such rituals that they teach by example and pass to the younger generations of Nidorina the metrics they will need to measure potential companions and seek, as well as secure, their adequate mate in the future. Moreover, Nidoqueen and Nidoking who are recently evolved are very protective of their former families and have been shown to retake their offspring under their wing for short periods of time.

Trainers and the Mating Season

Advice For Trainers: Once your Nidoran couple have grown used to each other and start spending quality time on their own, you may observe a sporadic event where the female will stay perched in an isolated but well-visible place and the male will go to the outside to start crying very loudly and scratching the surface of trees and walls. While the media has labeled this behaviour as “romantic serenades” for marketing purposes, you, the experienced Trainer, shall know better: this is actually the male announcing to his surroundings that he has found a “new” female, as he expects to incite potential competitors roaming the area to come in a hurry and unprepared, then dispose of them to secure and satisfy his mate, where “dispose” usually means to engage in heated battle one after another to get rid of the competition. Since such fights are carried out in the presence of the female and end only when she chooses so, it is very likely that they will last until only one or two males are in any condition to walk, let alone to mate. For this and other reasons, hotels and resorts in grassland areas require signing up your Nidoran or Nidorino in advance and impose punishment ranging from fines to a lifetime ban on Trainers who let their Nidoran explore alone or don't keep them under rigid control during the mating season.

Social Structure

Nidoran as a species organize themselves in macroscale colonies ranging hundreds of kilometers wide, with a hidden population focus where the young remain and the more active members move in concentrical circles around the core structure of the colony.

All basic forms live together in the core colony under their parents's watch and venture to the outside in sibling groups or accompanied by a watching pair. Young males are usually left to organize themselves on their own, while females band together and organize groups led by experienced females.

Shortly after evolving into Nidorino, the males will start to stick together in pairs, usually made of siblings, and secure a path partially going around the colony core, close to rocks or trees that they set up as their watchspot. The females on the other hand stick together in clusters, sharing custody (but not feeding) of each other's offspring. Such pairs and clusters watch each other's backs and are always available for the times when a younger form starts crying from danger and calling for family, which usually happens when a playful Nidoran decides to poke more than they can chew.

The colony itself is led by a cabal of Nidorina who have already bred for many consecutive years. Those Nidorina reserve themselves the “right of admission” of pairs of Nidorino siblings who have been shown to be effective guarding the surroundings of the colony from competing species such as Donphan, a continuous task that usually proves the worth of their genetic material. During the winter or times of stressful activity those Nidorina will disband the colony and lead child-raising groups on their own, leaving the adult males to pack together and roam the surrounding areas to secure a new starting spot for the colony. This is about the only time the Royal morphs are going to be seen closely interacting with the colony, as they will be usually entrusted to clean the chosen area of competing species.

Protection of the outer rings of the colony is carried out by the pairs of Nidorino who are given access to the berries and fruits supply of the colony in exchange for services such as preventing any intruder from coming closer to the core, teaching battling technique to the cubs, and eventually their reproductive availability. Much of the teaching and sparring time is spending in demonstrating adequate horn fencing and pressure attacks, as a Nidorino willing to perform a full frontal attack against another Nidorino must also prepare for the eventuality of having their ears pierced by an incoming horn, and trained Nidorino released back into the wild usually try to pass elemental techniques such as Water Pulse to their own children.

Protection of the inner circle, dedicated to the raising of the youth and the collection of berries and vegetables, is carried out by the Nidorina themselves – but it is not often that they face any trouble: would an attacker reach the core he shall likely be already dying from the mortal wounds the males in the area have inflicted, not to mention the effect of the blood-eating venom, and if such an intruder ever manages to reach the Nidorina cabal at the core, he is in for a slow and painful death, after which he will serve as further food supply or punching ramming bag for the kits.

Young Nidoran are usually allowed to roam the core circle on their own, play and fool around, and interact with other species so long as it is under the watching eye of the female clusters and male guarding pairs. A Nidoran who faces trouble is usually encouraged to face it by themselves, in particular if it is to protect a sibling; however if the threat proves too powerful, they will start screeching in short bursts similar to those of dying animals. Each set of screeches has specific patterns and frequencies that seem to be targeted specifically to their parents or older siblings, who will quickly make themselves present and forcefully dispose of the threat. While other Nidorino and Nidorina will hear the call for aid, they will for the most part wait until blood relatives make themselves present before actively assisting. Such a strategy of relying on direct family for protection is currently under study and formally called "call for family".

Social Role of the Royal Evolutions

The exact place of wild Nidoqueen and Nidoking pairs in a colony is very poorly understood to this date. Each colony has two or three Nidoqueen–Nidoking couples freely roaming far from the core, but they don't seem to usually participate in social activities or compete against each other nor the cabal Nidorina for any sort of position or power. The only times they are particularly active is right before the mating period of the species, where the couples perform complicated rituals under watch of the younger morphs, most usually Nidorina. The purpose of those rituals is not fully understood but they seem to be a demonstration that allows the royal forms to pass down the techniques and metrics than the younger forms will require to adequately evaluate, select and secure a mate.

Beyond the mating season demonstrations, Royal couples provide maternal or paternal comfort to their lesser-morph blood relatives and act as support for the colony once it has been split during the winter. Outside of the core, however, a Royal Couple will become ferocious partners who keep a faraway watch over their brethen, maintaining themselves just aloofly enough out of touch that they are only barely met by the groups of Nidos roaming around, maintaining an aura of mysticism, yet make themselves immediately present when a Nidoran in need calls for aid and provide the utmost level of protection this evolutionary line is capable of.

This evolutionary line – in particular the basic forms – are often compared to rabbits by the media, and Nidoking and Nidoqueen are sometimes portrayed as similar to Pokémon such as Aggron. This species is also frequently used by the media when a love (or sex) motif is required. As the basic forms enjoy the comparison against juvenile or platonic lovers, the Royal Evolutions are often portrayed as the paragon of life-lasting relationship between the elder patriarch and matriarch of a family; the intermediate stage morphs Nidorino and Nidorina on the other hand are more usually seen as eager sex partners due to the apparent kinkyness of their mating practices, yet at the same time their mate selection process have them being perceived as longlasting, loyal partners.

The same media that has assigned them those idyllic roles for marketing purposes disturbingly omits their destructive tendencies against anything that threatens the objects of their “love”, which may cause more than a bit of danger for trainers who idealize their relationship with Nidoran under their charge, or worse for trainers meeting this species in the wild (see “Hazards”). During the time the campaigns for safe scouting reached their peak, the movie industry still took the issue lightly– a cult classic around that time featured a medieval tale with a subplot about a Nidoran believed to be a murderous monster, which is proven in flesh by the legion sent to kill it.

Fortunately the overall rarity of the higher morphs statistically, if anything, alleviates the potential dangers a trainer may run into, as do the programs for controlled Nidoran herding in some regions.

Nidoking has enjoyed also sporadic appearances in a fifty-years-old franchise focused around a particularly large and destructive TyranitarLarvitar§Hazards. In a cult crossover of the franchise, a Nidoking is awakened from his slumber by transidereal Latias who psychically enslave Poison-type monsters to destroy mankind. Nidoking is forced to thrash the nearby human industries that the Latias were targetting, and after freed from the mental control is too exhausted and confused to do anything more than watch the final battle from afar. Another movie from the franchise had Nidoking slated to appear and destroy a world-renowned cultural landmark by burrowing and using Earthquake, but in the final product he had to be switched out for an Aggron.


Nidoran v3rc2.

  • Entry v3rc2 (2011-06-22)
  • Entry v3rc (2010-12-25) (link pending)
  • Entry v2 (2010-09-11) (link pending)

Entry, research and Gushing About Pokémon I Like provided by @/SilentReverence for ThePokedexExtendedFanonEdition with additional credits as follows:

  • Crow T. Robot : binomial names, potholing and other stuff
  • Luigifan: grammar, collaborative edits, descriptions and more adequate potholing
  • Others (contact me to confirm and add your handle here)

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