@ Eichhörnchen...
Found this NPR (National Public Radio, a US non-commercial public network) program on butterflies and the way the see and other curiosities:
Butterflies Have Hearts In Their Wings. You'll Never Guess Where They Have Eyes -
https://www.npr.org/2020/07/24/89517...they-have-eyes
The first bit of info about a place where they have eyes gives a whole new meaning t the phrase "Why are you looking at me
that way..."...
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