For humans, gender and sex expression are complicated and intensely personal parts of our identity and understanding of self. For a lot of fish, it's more of a vibe.
Happy Pride <3
Resources:
https://www.nature.com/articles/srep35461
https://evolution.berkeley.edu/fisheye-view-tree-of-life/gender-bending-fish/
https://marinemadness.blog/2020/02/04/parrotfish-the-gender-fluid-narcoleptics-that-poop-out-beaches/
https://www.karger.com/Article/Fulltext/449297