In three experiments with 1,880 Germans and Americans, left-leaning people judged a report claiming liberals out-think conservatives as more valid than the identical report about White and Black people. White US conservatives showed the mirror image; Black conservatives showed no preference.

In two US studies, Republicans rated meat as tastier and ate it more often, while Democrats rated plant protein foods higher. Plant-based endorsements from a participant’s own party leaders barely helped and even made a beef and pork meatball taste worse.

A global simulation finds tropical seaweed farms could be scaled up to the equivalent of 45% of human food demand in 9 to 14 months after a nuclear war, and growth increases with the severity of the war as cooling stirs up ocean nutrients.

Using US survey data from 1972 to 2021, researchers found that rising polarization comes from people within each generation sorting by party, while Millennials are among the least polarized cohorts and Boomers the most sorted.

In nationally representative US data, where Christians placed Jesus on the left-right scale was best predicted by their own ideology and their views on Christian nationalism, not by religiosity. Non-Christians showed nearly identical patterns.

Comparing 185 retired NBA players’ salaries with their Topps rookie card prices, a 1% rise in offensive output lifted card values 1.9% and salaries 2.4%. Only owners rewarded tenure and starts, and neither group showed racial bias.

When large language models screen resumes, they pick versions they generated themselves over equally good human-written ones, with bias of 67% to 82% after controlling for quality. In simulated hiring, matching the screener’s AI raised shortlisting odds by 23% to 60%.

Among 117,673 older US adults followed for an average of 18 years, death risk did not differ significantly between omnivores, vegetarians, pescatarians and vegans once lifestyle and health were accounted for (vegetarians vs non-vegetarians: HR 1.09).