An international research team of researchers from Germany, Austria, Poland, Czechia and Croatia led by the HistoGenes consortium has provided answers to the question how the Slavs transformed Europe with the first comprehensive ancient DNA study of medieval Slavic populations. By sequencing over 550 ancient genomes, the team has revealed that the rise of the Slavs was, at its core, a story of people on the move. Their genetic signatures point to an origin in the region stretching from southern Belarus to central Ukraine—a geographic area that matches what many linguistic and archaeological reconstructions had long suggested.

Since the Middle Ages, the size of wild and domestic animals has largely been shaped by human selection: domestic animals are increasingly larger; wild animals increasingly smaller. During the 7,000 years preceding this period, however, wild and domestic species evolved in a synchronous and similar manner, suggesting that environmental and climatic changes played a greater role in shaping animal morphology. These findings, unprecedented on such a time scale, are revealed by CNRS scientists  in a study published in PNAS this week.

A groundbreaking new biography of Æthelstan marks 1,100 years since his coronation in 925AD, reasserts his right to be called the first king of England, explains why he isn’t better known and highlights his many overlooked achievements. The book’s author, Professor David Woodman, is campaigning for greater public recognition of Æthelstan’s creation of England in 927AD.

Study coordinated by Ca’ Foscari University of Venice opens new perspectives on the complex behaviour of prehistoric human populations. It’s the first time that the indigotin molecule has been found on such ancient artefacts, demonstrating the processing of Isatis tinctoria L., a non-edible plant: hypotheses are open on its use as a dye or medicine.

Underwater optical imaging plays an irreplaceable role in fields such as marine exploration, resource development, environmental monitoring, and underwater archaeology. However in the underwater environment, light is affected by scattering and absorption, which not only leads to blurred image details and reduced contrast, but also severely limits the imaging range, and further makes it difficult for traditional technologies to acquire scene depth information. Since underwater scattered light inherently exhibits partial polarization characteristics, polarization technology can separate the target light and reflected light by analyzing the polarization state of light, thereby effectively suppressing the scattering effect of turbid water. Nevertheless, existing polarization underwater imaging methods mostly focus on "enhancing image clarity" and neglect the hidden depth cues in polarization images. Although binocular imaging is suitable for underwater 3D perception due to its simple hardware and low energy consumption, in turbid water, objects with low texture are prone to failure in feature point matching, resulting in wrong depth information. To address this, this study focus on the depth cues contained in underwater polarization imaging, integrates polarization features into the binocular imaging framework, and improves the accuracy and stability of depth estimation in turbid water, filling the research gap of polarization in underwater three-dimensional imaging utilizing polarization imaging technology.