4th Gen Sex Change Azurill

PokéMartin

The Lonesome Drifter
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    So, to my shock, when my Azurill evolved to Marill, it went from female to male. I Google'd this and apparently it isn't uncommon

    Has this happened to anyone else? Or with any other Pokemon?

    Also, if a Pokemon can change sex when it evolves, can it also become Shiny?

    Just some thoughts...
     
    That is because Azurill has a 75% chance of being female, whereas Marill only has 50%. Since gender is determined by a hidden value assigned to your Pokemon during birth or encounter, that value will stay the same no matter how many times the Pokemon evolves, levels up, faints, is fed Energy Roots for fun, is put in the daycare, sent over Pal Park, etc.

    What this ultimately means is that of the 75% of female Azurill, two-thirds (50% of all Azurill) will stay female when evolving, while one-third (25% of all Azurill) will change to male. You will never have male-to-female changes.
     
    So, to my shock, when my Azurill evolved to Marill, it went from female to male. I Google'd this and apparently it isn't uncommon. Ummm Glitch? its Actually Impossible....

    Has this happened to anyone else? Or with any other Pokemon? No Way

    Also, if a Pokemon can change sex when it evolves No it Cant be , can it also become Shiny? NOO WAAY!!

    Just some thoughts...

    Comments in Bold

    filler
     
    I got this from Bulbapedia:

    # Azurill is also the first and currently only Pokémon whose gender ratio (75% ♀ / 25% ♂) is different than that of its evolved forms (50% ♀ / 50% ♂). This causes 1 in 3 female Azurill to evolve into male Marill. It is unknown if this is a programming error, or a reference to real-world animals that can in fact change gender.

    Seeing that there are videos of the Advance Generation games of this happening. I am sure it is meant to happen. If it was a Glitch they would of corrected it for D/P/P.
     
    I got this from Bulbapedia:



    Seeing that there are videos of the Advance Generation games of this happening. I am sure it is meant to happen. If it was a Glitch they would of corrected it for D/P/P.

    They could not change it because then when transferring a Marill over from R/S/E, the value that determines gender for it will contradict. Say, with 50% male-female ratio, 1-50 yields a female and 51-100 yields a male. With Azurill, that would be 1-75 yields a female and 76-100 yields a male. Transferring a 64-Marill (M) from R/S/E would potentially yield a 64-Marill (F) in D/P. The other option is to change the gender ratio of Azurill to match that of Marill's - when transferring over a 52-Azurill (F), it will turn into a 52-Azurill (M).
     
    An interesting note is that although Azurill changed from female to male during evolution, when I changed now-male Marill's nickname... the small sex symbol in the corner of the nickname screen was still female. What do you make of that then?
     
    An interesting note is that although Azurill changed from female to male during evolution, when I changed now-male Marill's nickname... the small sex symbol in the corner of the nickname screen was still female. What do you make of that then?

    Hmm... There are actually two values which store a Pokémon's gender. The PID is the one that causes the glitch, as the game compares the last byte of that to the Pokémon's gender rate. However, there's also a gender flag, which is either 0 or 1. I guess that this doesn't change to match its new gender when Azurill evolves.

    This would suggest that the nickname screen uses the gender flag to determine gender, while the summary uses the PID.
     
    This is the first I've heard of this, but it seems like a plausible oversight by nintendo. I've noticed that gender ratio before. I may experiment with this if I get a chance and post the results.
     
    I bet it was just a programming error. There's no way the people making the game could've possibly thought something like this could be regarded as an easter egg.
     
    It's kind of interesting, though, if they wanted to, they could expand on this and perhaps put it in the Pokédex as a weird genetic thing. It'd give the Marill chain something a little unique...although weird. XD
     
    facinating, although I always wondered why, also azurill is the only pokemon that loses its type on evolution completly changing to a new type
     
    facinating, although I always wondered why, also azurill is the only pokemon that loses its type on evolution completly changing to a new type

    Let's not rule out Eevee.
     
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