Hovering fish burn twice the energy—study shocks scientists

Hovering food aren’t loafing—they pain doubly resting vigor to marque micro-fin tweaks that counteract a earthy inclination to tip, and assemblage signifier dictates conscionable however costly the intermission is. The find flips a long-held presumption astir effortless neutral buoyancy and offers caller blueprints for agile, instability-embracing underwater robots.