This example explores how the binary category of pregnancy capability dissolves under scrutiny. It visualizes a custom dataset derived from HoffmannP’s markdown analysis, using D3.js to construct a force-directed graph where nodes represent categories like “has uterus,” “sterile,” or “temporarily infertile,” and edges link attributes to those conditions. The layout employs `d3.forceSimulation` with `d3.forceLink` and `d3.forceManyBody` to cluster related concepts, revealing the fractal complexity of seemingly binary traits. Node colors and labels are rendered via SVG, with tooltips through D3’s event handlers, highlighting shifts between known, unknown, and transitional states.