At the threshold where engineering meets biology, a team of researchers has built a 140-milligram robot that moves through air, land, water surface, and underwater depths using a single morphing body — no swapped parts, no separate systems. The machine embodies a principle called functional recursion: one structure, reassigned again and again, performing what nature has long achieved through millions of years of evolutionary refinement. In an era of increasing specialization, this tiny device asks a quiet but profound question about whether simplicity, not complexity, is the deeper form of int