This is why Swiss cheese is 'holey'.
Why do some rocks resemble Swiss Cheese?, Garlick's Notebook
The Secret Behind Swiss Cheese's Signature Holes, by T. M. Watson, The Shortform
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Unravelling the mystery behind holes in Swiss cheese
Looking through Books The Journal of the Walters Art Museum
Pumpernickel sandwiches may be popular now, but I've always been hooked
The Virologist Who Created A 'Swiss Cheese' Metaphor To Explain The Pandemic Has A Message For Educators
The case of the incredible shrinking Swiss cheese holes - CNET
Plug the Holes in the Swiss Cheese Model
What, no mice? The age-old mystery of the holes in Swiss cheese has finally been solved - Mirror Online
Research Indicates Titan's 'Enigmatic Isles' Could Be Honeycombed Hydrocarbon Ice Structures
Scientists discover the real reason Swiss cheese has holes