Dear. go and read science first. There is no 100% proof of any scientific theory yet. Geology is not a perfect science either. You should ask for historic proof and not the scientific proof. There are 1000s of historic proofs claiming validity of such mythical stories. Ramayana is a historic proof of the scientifically established fact that humans and monkeys are closely related. The only reason historians hesitate accepting this is because, its all HINDU history.