This video definitively settles that question.
What’s the deal with the beak, anyway? Where does it come from, evolution-wise?
Don’t a few other molluscs also have “jaws”?
Do other marine animals have beaks?
“Marine animal” is not an evolutionarily meaningful term.
Is it terribly stupid to wonder if there is some link between bird beaks and squid beaks?
Yes Sorry, couldn’t help. Beaks have evolved lots of times independently within vertebrates, and vertebrate jaws have nothing to do with cephalopod jaws.
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