Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
The biological entity involving energy and walk emerges as a result of the organized arrangement of the leg, allowing for a biological entity to traverse a distance in a regular and intentional manner, where the capacity to do work, manifesting as the ability to cause change or motion in a physical system, is utilized.
External reference — all senses of the word “run” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.