Using tufts of moss as sponges, improvising play dolls from tree stumps, clipping leaves to signal wanting to be picked up – child chimpanzees are savvy technologists and communicators, a Canadian-led study finds.

MIT researchers examined the role geography has played in the opioid crisis. They find state-level policies inadvertently contributed to the rise of opioid addiction, and that addiction itself is a central driver of the long-term problem.

Each year, the Frobenius Institute presents the Frobenius Research Award for outstanding ethnological dissertations in German-speaking countries. This year, the €3,000 prize was awarded to Maren Jordan for her dissertation “Temporalities of Reproduction: Fertility Transformations across Generations in the Sultanate of Oman.” 

Sharing happy moments with a partner may be good for older people’s health, lowering the level of the stress hormone cortisol in their bodies, according to research published by the American Psychological Association.