This tree chart visualizes the taxonomic hierarchy of cat species, starting from the Felidae family and branching through Pantherinae and Felinae subfamilies down to individual species like lions and cheetahs. Each node is color-coded by taxonomic level, with curved links drawn using SVG paths whose stroke colors indicate the parent-child relationship. The visualization uses the d3.tree layout to position nodes hierarchically, with d3.hierarchy structuring the nested data and custom link path calculations creating smooth cubic Bézier curves between parent and child nodes.