Demographic and archaeological evidence from human hunter-gatherer and prehistoric populations consistently demonstrates a survival curve characterized by high infant and juvenile mortality.
The claim is specific, empirical, and falsifiable. Papers [0], [4], and [7] all examine the demographic profiles, survivorship curves, and mortality rates of human foragers and prehistoric populations, which characteristically display high infant and juvenile mortality before leveling off. None of the retrieved papers refute this well-established evolutionary demography finding.