Five bubbles represent the five largest U.S. national parks by land area, scaled proportionally and labeled with each park's name and acreage. Animated with D3 transitions, circles expand sequentially while text fades in. Distances between bubbles are not to scale, but radii accurately compare park sizes. Data originates from Wikipedia's list of national parks, and the visualization uses d3's `select`, `transition`, and `easeLinear` APIs.