"Fish are able to recognize themselves in the mirror":
https://nypost.com/2019/02/08/fish-are-able-to-recognize-themselves-in-the-mirror/
"If a fish can pass the mark test, what are the implications for consciousness and self-awareness testing in animals?" https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3000021 #FFHCI #Biology