When and where the earliest modern human populations migrated and settled in East Asia are relatively well known. However, how these populations moved between islands on treacherous stretches of sea is still shrouded in mystery. In two new papers, researchers from Japan and Taiwan led by Professor Yousuke Kaifu from the University of Tokyo simulated methods ancient peoples would have needed to accomplish these journeys, and they used period-accurate tools to create the canoes to make the journey themselves.

In an international study, participants’ attitudes towards certain social groups—namely, politicians and Black people—were more strongly related to their attitudes towards the men than the women of each group, suggesting that men are the “default” for attitudes towards these groups. Curtis Edward Phills of the University of Oregon, U.S., and colleagues present these findings in the open-access journal PLOS One on June 25, 2025.

A U.K. study of data on more than 30,000 crimes sheds new light on crime after dark, suggesting that the overall risk of crime rises when darkness falls, but that risk varies depending on type of crime and geographical area. Jim Uttley of the University of Sheffield, U.K., and colleagues present these findings in the open-access journal PLOS One on June 25, 2025.

Data from Poland, Indonesia and Nepal indicate that affectionate behavior is associated with higher relationship satisfaction - though cultural differences impact how affection is displayed and perceived

"Boomerang" made from mammoth tusk is likely one of the oldest known in Europe at around 40,000 years old, per analysis of this artifact from a Polish Upper Paleolithic cave

A University of Houston study finds that minority employees often face "outsider" status and complex visibility, limiting their access to key career advancement resources like mentorship, networks, and training. The findings are based on a review of 337 journal articles examining disparities in workplace success.