David Reich is exploring a theory that Neanderthals are culturally modern humans, despite being genetically mostly archaic, due to a modern human expansion 200,000-300,000 years ago that introduced Mi...

A recent study by David Reich's lab identified approximately 7,200 positions in the human genome with at least a 50% confidence of being under natural selection, estimating that about 3,600 of these a...

Europeans and East Asians descend from a common ancestral population that came out of Africa and the Middle East approximately 40,000 to 50,000 years ago.

The field of ancient DNA has been successful in revealing surprising findings about human migrations and mixture but has not been successful in learning about biological change until recently due to s...

There are almost no genetic changes that are 100% different in frequency between European and East Asian populations.

The study found almost no detectable enrichment of strong selection signals for behavioral or psychiatric traits.

A 2014 study by Bhatia et al. of approximately 30,000 African-Americans found no significant evidence of natural selection on their genomes despite the intense environmental changes over the last few ...

The genetic predictor for years of schooling is very strongly correlated with the age at which women have their first child.

The current geological epoch, the Holocene, which began about 12,000 years ago, is a period of unusual climate stability on a scale of the last 2 million years.

In the ABO blood system, the B variant has increased to about 10% frequency at the expense of the A variant.

The Y chromosome and mitochondrial DNA of Neanderthals are of modern human origin, acquired through interbreeding 200,000 to 300,000 years ago, and subsequently rose to 100% frequency in the Neanderth...

Genetic data indicates the human genome in Europe and the Middle East reacted more strongly to environmental changes around 5,000 years ago during the Bronze Age than to the initial transition to farm...

Genetic signals of natural selection are vastly enriched by four to five-fold for immune-related traits.

Genetically, Denisovans and Neanderthals are sister groups, descending from a common ancestral population around 500,000 to 600,000 years ago.

Natural selection in Europe and the Middle East has accelerated over the last 10,000 years, particularly in the last 5,000 years.

The lack of strong selection signals for behavioral traits is likely due to these traits being shaped by a very large number of genes with weak effects, making them statistically harder to detect.

The estimated polygenic score for cognitive performance in European hunter-gatherers is approximately three standard deviations below the modern mean.

The strength of natural selection on genetic variants associated with cognitive performance peaked during the Bronze Age, between 5,000 and 2,000 years ago, and shows almost no evidence of selection i...

Modern humans are the product of a mixture event 200,000 to 300,000 years ago between an early modern lineage (80%) and an archaic African group that diverged 1.5 million years ago (20%).

A 2017 study in Iceland estimated a 0.1 standard deviation decrease in the genetic predictor for years of schooling within a single century.