Oddly, the original phrase is "Form follows function", although it was in the context of (human) architecture - https://en.wikipedia.org/wiki/Form_follows_funct

Oddly, the original phrase is "Form follows function", although it was in the context of (human) architecture - https://en.wikipedia.org/wiki/Form_follows_function https://en.wikipedia.org/wiki/Form_follows_function There is a school of though that says that evolution acts on forms that arise through natural processes. One of the ideas Philip Ball is interested in is how the forms created through natural processes (say, a cloud) differs from those formed partly by evolution (say, a tree). He has a series of three short books on this - "Nature's Patterns, a Tapestry in Three Parts": "Shapes", "Flow", "Branches".