This animated scatter plot cycles through four Iris flower measurements—petal width, sepal width, petal length, and sepal length—on the x-axis while keeping sepal length on the y-axis. Data points are colored by species using magenta, cyan, and orange markers. Built with D3 v6, the visualization uses `scaleLinear`, `axisLeft`, `axisBottom`, and `join` to render SVG circles and axes, with a `setInterval` function updating the x-value mapping every second. The Iris dataset is loaded via `d3.csv`, and a custom legend labels each species.