I work in such an industry that takes their security very seriously. No shared documents, no photos, no discussions etc. without a need to know.

Recently, some brilliant mind thought it would be a good idea to release a drone of the facility. Owner's not happy and suggested this https://www.bbc.com/news/av/world-europe-35750816 Perhaps old news but relevant in my world at the moment.

The point to this mention - I absolutely love when mother nature excels. Brilliant answer to a man made problem.

I'm a huge fan of any design that needs to check in with Mother's Patent Office before proceeding.