Here each Yuga is mentioned in lakh of years, which does not coincide anywhere near to scientific truth. With the help of palaentologists, DNA mapping, carbon dating or theory of evolution all Scientific approaches/Data shows that homosapiens(humanbeings) evolved on this earth just 20,000 years ago). But the saddastic part of all this cooked story is given Below. "It will help to know that Satyug, Treta, Dwapar and Kalyug have a continuous cycle, like the cycle of the months in a year or the days in a week. As Monday is followed by Tuesday and January is followed by February, Satyug is followed by Treta and this cycle continues endlessly. Or these, Kalyug has the shortest span of 4,32,000 years, Dwapar is double the years of Kalyug at 8,64,000 years, Treta is triple the years of Kalyug at 12,96,000 years and Satyug is four-times the years of Kalyug at 17,28,000 years. Thus one unit of four yugas is called Chaturyugi, having a total of 43,20,000 years."
which mentioned all the periods in lakhs of years, this data may help Steven Spielberg to make another Jurrasic Park, here each Yuga is mentioned in lakh of years, which is showing Fake-truth.
Ram is a GOd its enough to trust on him, no need to prove him scientist or digging out the burried deads.