A swarm of one hundred white sperm-like forms swims across a black SVG canvas, each with a rotating elliptical head and a flexible, sinuous tail that undulates as it moves. The animation uses d3.timer to update each form’s position and path, bouncing them off the canvas edges while applying a sinusoidal wave to the tail segments. Rendering is done with SVG ellipse and path elements, styled with white strokes and fills, and the code relies on d3.v3 for data binding and timer-driven animation.