Nidorina is comparatively larger than its pre-evolution, though she loses the forehead horn. Nidorina's poison spikes are larger and probably more potent; she has also gained the ability to stand on her hind legs.
Gender differences
Nidorina is the female equivalent of Nidorino. This is shown even in its name, which ends in a as opposed to o in Nidorino. A is traditionally a feminine vowel in the English language, particularly at the ends of names.
Nidorina seems to be more docile and relaxed than her counterpart Nidorino.
Special abilities
Nidorina's abilities are stronger than Nidoran♀'s, but are otherwise the same.
Behavior
Nidorina is a gentle Pokémon like its pre-evolution, Nidoran♀. She is a caring mother, chewing food for her young. Although she would rather not attack at all, she prefers attacks like clawing and biting. She seems to display close family bonds with others of her own kind, and becomes nervous when separated. However, when angered, a Nidorina can become a formidable foe.
When Nidorina are with their friends or family, they keep their barbs tucked away to prevent hurting each other. This Pokémon appears to become nervous if separated from the others.
When Nidorina are with their friends or family, they keep their barbs tucked away to prevent hurting each other. This Pokémon appears to become nervous if separated from the others.
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Nidorina's name may be based on the word needle and rhinoceros. It may also be based on cnidocyte, a type of venomous cell responsible for the stings delivered by stinging animals, most notably, by jellyfish. Alternatively, it may be based on 二 ni, two, or 二度 nido, two times/two degrees, referring to there being two distinct evolutionary lines using the name with similar names and traits. The rina in its name most likely alludes to its female gender - in many languages, such as Spanish and Italian, names and words ending in a are an indication for the female gender.
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.