Absolutely, that’s a classic hint of self‑similarity in nature. When a big river cuts its valley, the little channels it creates often echo the larger shape—like a miniature map inside the map. In math we call that a fractal or a scaling law: the same basic pattern repeats at different sizes. If you sketch it, you’ll see the same angles and proportions showing up over and over. It’s a great way to see how geometry and physics work together, and a fun project to explore with a simple drawing or a little simulation. Give it a go and see how the math lines up with the river’s path!