well guys, there are a few things to consider here. first of all, who says that modern materialistic scientists have accurately judged the history of the universe with their descending knowledge. in fact who even says that they are trying to accurately judge the history of the universe? in previous ages, humans were said to be giant, and cultured and intelligent, long lived and posessing mystical powers. were not then animals also large sized? is it possible that just like they have covered up our devolution they also cover up the devolution of our animal bretheren? remember that according to them life comes from chemicals, that the universal arrangement is an accident, that we evolved from amino acids, etc...
actuallly there is much archeological evidence that supports krsna consciousness and the vedic version. it has been supressed however, even to the point of threatened violence. see forbidden archeology by micheal cremo for more info. sorry for the short response but if you dig deep you can find out some interesting stuff in this regard.