Suppose we believe that the Ramayana actually reported events that unfolded in that era. How do we explain the presence of Vanaras that could fly, that could communicate with human beings, that could help build bridges, etc? Like the Dwarka city found submerged, are there evidences of fossils that give evidence to the existence of such monkeys in those ages? Or do we have evidence for coexistence of two different species of men, of which Vanaras were a less evolved version?
More generally, if we believe in the occurrence of the events in Ramayana, how do we justify the Vanaras to a skeptic?