this post was submitted on 28 Jun 2025
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If anyone is curious (as I was):
In real life Nemo's dad would have become female after mommy got eaten. https://evolution.berkeley.edu/fisheye-view-tree-of-life/gender-bending-fish/
"of all the animals, fish are sexually the most fluid" - https://www.bbcearth.com/news/fish-are-the-sex-switching-masters-of-the-animal-kingdom
Salmon change sex too if I recall correctly.
I don't think salmon change sex to be honest. It seems from the stuff I could find that sex determination for salmon is mostly chromosomal but with divergence at certain temperature during development (or exogenous hormonal influence obviously).
The coolest paper I found while searching was this:
Natural sex change in fish - ScienceDirect - https://www.sciencedirect.com/science/article/abs/pii/S0070215318301145
Apparently they do, or at the very least some types of salmon: https://www.sciencenews.org/article/salmon-puzzle-why-did-males-turn-female
No, this is just saying that they have the chromosomes that usually produce male salmon but they have female salmon genitalia. I read that one. Unless I misread they haven't seen these salmon be male and then later female (like the clown fish do).