Here, we use multiple approaches specifically designed to deal with fragmentary fossils to test if metric cranial traits in Neandertals fit modern human patterns of integration.
Traits for which Neandertals deviate from modern human integration patterns tend to be found in regions where Neandertals and modern humans are known to also differ in their mean values.
However, the modern human life-history pattern is likely very different from that of our longer term ancestors starting from the time that we last shared a common ancestor with aye-ayes ∼70 Ma.
By studying the mitochondrial genome, and the X and Y chromosomes, we can trace female and male lineages throughout modern human history, including patterns of migrations of populations over the last 60,000 years.
Assuming that living great apes demonstrate the ancestral weaning pattern, modern humans display a derived pattern that requires explanation, particularly since earlier weaning may result in significant hazards for a child.
The relationship between development and anomalies of number, size and shape of teeth in modern human studies reflects the reiterative patterns seen in mouse models of signalling of the ectodermal mesenchymal interactions during tooth germ initiation and morphogenesis.
Delayed fusion of the metopic suture apparently evolved to overcome the obstetric dilemma that arose when our ancestors stood upright, but had the added advantage of allowing for the pattern of modern human brain growth.
To address whether the signatures of divergent evolution are manifest within modern human populations we examined the pattern of segregation of single nucleotide polymorphisms (SNPs) occurring in all genes that were predicted to have signatures of positive selection in the human lineage.
Lee Hall, author of the book "On Their Own Terms: Bringing Animal-Rights Philosophy Down to Earth" puts it eloquently: "The deepest and most comprehensive question for our social movement is why and how modern human society has developed through patterns of domination; and the greatest challenge we face is imagining humanity without the master role".
Patterns of modern human population structure are helpful in understanding the history of human migration and admixture.
