Ah, yes. Ambigrams - upside-down images...it's right there in your post.those are palindromes....but good ones.
Went..fascinating!This OP reminded me of palindromes, too, @Murrmurr !
The ambigrams, though, are visual and spatial. Very interesting!
I am not good at moving pictures from elsewhere on the internet, to these threads, but if you put
" Fish ambigram" into the search engine,
then you can see some surprising and interesting artistic interpretations, that make them the same, when words are turned upside-down and backwards.
Or is that, back-words?
The word "swims"...upside-down.....is still "swims"!
How about turning our computers upside-down, instead of attempting to read while (imagining) standing on our headsgreat, now I am dizzy...