 However, the remains suggest that some young females at that time died due to some complications, but that now (present time) they have evolved enough that Dominant young females of that age can give birth (up to four children at a time) without any birth complications - and with ease.At least some of the time these children are identical quadruplets.Sloan speculates at one point that there may be as many as 200,000 members of the new species.