Rivos V was the fifth planet in its star system, in the Delta Quadrant. A popular dish called Zoth-nut soup originated from this world. Sometime prior to 2375, Rivos V was threatened by the Borg. The Think Tank assisted the inhabitants of Rivos V resist the cybernetically-engineered race. In exchange for their services, the Think Tank accepted the recipe for Zoth-nut soup. (VOY: "Think Tank")