The best technical feedback I've ever had was from my Japanese translator. Unlike an LLM doing translation, he felt the need to understand the contents to provide clear, consistent, and idiomatic translations. As a result, he read the books far more thoroughly than anyone else and caught a bunch of small errors. If you read both English and Japanese, I'd recommend the Japanese versions of any of my books that have translations: they almost certainly have fewer errors.
But, even then, he was an expert in computing things, not in reptiles, so would probably have missed this specific case.