Fish - Self-recognition (ability To Self-recognise)

Journal article: "Cleaner fish recognize self in a mirror via self-face recognition like humans" https://www.pnas.org/doi/10.1073/pnas.2208420120

Hmmm - I can read the whole article in its entirety.
[Edited to add: can you access it via the original tweet? https://twitter.com/LynneUSneddon/status/1628026383875072001   NB. Copy & paste it, or the pnas link, straight into the url/weblink space at the top, don't copy & paste it into the search engine - I seem to recall you had difficulties before when doing that with a youtube clip I'd posted.]

Sorry - here's the correct tweet for this particular article:
https://twitter.com/LynneUSneddon/status/1627978419156779009?cxt=HHwWgoC8_eXv3pctAAAA

Hoping you can access the full article via that link.

Essentially, the fish "likely recognize their own mirror image using a mental image of the self-face comparable to humans" and do so based on that rather than by comparing body movements in the mirror.  Fish that don't recognise themselves in the mirror attack photos of themselves and others, whereas those that do recognise themselves are less likely to attack photos of their own face but continue to attack photos of others.