An animated, collapsible family tree visualizes the S.V.Rao lineage, with each node representing a person or family unit. Styled circles use different stroke and fill colors to indicate relationship types and generational levels. The example builds the tree using the D3.js layout and SVG diagonal link generators, with transitions animating nodes as they expand and collapse upon click. Data is embedded directly in the code as a hierarchical JavaScript object, and the visualization supports smooth updates when navigating the family structure.