This bar chart displays the average weight of different species, categorized by continent, revealing which regions harbor the largest animals. The visualization fetches its data from a remote JSON file via `d3.json`, then uses `d3.scaleLinear` for the x-axis and `d3.scaleBand` for the categorical y-axis. SVG rectangles are drawn for each species, with axes created using `d3.axisBottom` and `d3.axisLeft`. The chart applies a custom tick format via `d3.format` to abbreviate large numbers, and all rendering occurs in SVG.