European polities over the 15th-20th centuries led by queens were more likely to engage in war than polities led by kings

Longevity genes that helped humans survive ancient airborne toxins may be the same genes that make humans resilient to pollution from fossil fuels and cigarette smoke today, according to a study published in the December 2019 issue of The Quarterly Review of Biology.

There is a bias against female political candidates: Survey experiments show that "voters hold female candidates, relative to male candidates, to more stringent qualification standards, and these higher standards limit the ability of female candidates to secure electoral support."

The Role of Diet in Resilience and Vulnerability to Climate Change among Early Agricultural Communities in the Maya Lowlands - Mass spectrometry radiocarbon dating and analyses of 50 human skeletal remains from Cahal Pech suggest more diverse diets may have promoted resilience in the face of change.

Emigration opportunities to the United States during the Age of Mass Migration (1860-1920) boosted labor movement activism and left-wing voting in Sweden

As the number of demolition orders issued against Palestinian structures in the West Bank increases, Palestinians are more likely to oppose peace and support violence against Israelis.

Supporters of populist presidential candidates change their view of whether the presidency counts as part of the "political establishment" if their candidate wins the presidency

Having more black kids in class changes white kids' attitudes and makes them more likely to date a black person as an adult

"The positive relationship between tax cuts and employment growth is largely driven by tax cuts for lower-income groups and that the effect of tax cuts for the top 10 percent on employment growth is small."

The sudden enrollment of more than 4,000 Haitian refugee students in four Florida school districts during the 2009-10 school year (following the 2010 Haiti Earthquake) had zero or modestly positive effects on the educational outcomes of incumbent students in the two years that followed.