Last summer I found another perfect example of natural geometry in my vegetable garden. The tiny (almost) symmetrical patterns in these pictures were attached to a leaf of one of my bean plants. As far as I can tell, these are eggs laid by a shield bug or stink bug. The bug itself is a rather quirky looking leaf eater, they can become a pest though. The second picture shows nature's clever solution: a small parasitizing wasp. It's larvae eat the eggs and thus keep the bug population under control.