Business Bulls | AI on Instagram: "Four-legged delivery robots are quietly redefining the last-mile game. Unlike wheeled bots, Rivr Tech’s quadruped can step over curbs, grip icy sidewalks, handle slopes, and adapt instantly to rough or changing ground. Its leg-based design keeps it upright where traditional delivery machines struggle, even in snow or uneven streets. As urban logistics evolves, these walking robots hint at a future where parcels move independently through complex cities, not jus