https://www.uni-wuerzburg.de/en/news-and-events/news/detail/news/why-the-flounder-is-flat/
Why the flounder is flat -
Scientists have long been puzzled by the flounder's asymmetrical physiology. The mechanism that triggers the unusual asymmetry has now been identified by...
https://geni.us/TheFlounder
The Flounder (Helen & Kurt Wolff Book)