What do ancient genomes show about recent human evolution?
Davide Piffer and I have a new study out: Piffer, D., & Kirkegaard, E. O. W. (2024). Evolutionary Trends of Polygenic Scores in European Populations From the Paleolithic to Modern…
Davide Piffer and I have a new study out: Piffer, D., & Kirkegaard, E. O. W. (2024). Evolutionary Trends of Polygenic Scores in European Populations From the Paleolithic to Modern…
George Francis and I have a new exciting study out, the formal and finalized version of George Francis' 2022 blogpost: Francis, G., & Kirkegaard, E. O. W. (2023). Intelligence and…
Back in 1982 Richard Dawkins wrote a book called The Extended Phenotype, which argued that the "phenotype should not be limited to biological processes such as protein biosynthesis or tissue…
In the continuing debate about mental illness, we have roughly the following situation: Bryan Caplan representing the Thomas Szasz camp Scott Alexander representing the pragmatist "define mental illness in a…
Suppose you wanted to know about race differences in sexual behavior, how would you find out? Well, you could ask people, and if self-reports are accurate and don't have some…
Cold winters theory gets at bad name, even from fellow hereditarians. In fact, the article about it was deleted from Wikipedia too. In my opinion that's because they are not…
Richard Lynn famously spent a few decades collecting data on human intelligence around the world. Eventually, he was able to generate world maps of average intelligence levels by nations and…
Together with Ed Dutton and Helmuth Nyborg: Dutton, E., Nyborg, H., & Kirkegaard, E. O. W. (2022). Europeans Have Larger Testes than Sub-Saharan Africans but Lower Testosterone Levels. Mankind Quarterly,…
https://twitter.com/whyvert/status/1392623731835506691 I have not, but Lynn has noted that East Asians have a relative advantage in visual-spatial ability, and that's their written language, possibly some gene-culture co-evolution. One study shows…
Skoyles, J. R. (1999). Human evolution expanded brains to increase expertise capacity, not IQ. Psycoloquy, 10(002). Chicago Skoyles is arguing a rather implausible claim: Why do modern humans have larger…