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Genome-wide ancient DNA data from individuals from the Middle Bronze Age to Iron Age documents large-scale movement of people from the European continent between 1300 and 800 bc that was probably responsible for spreading early Celtic languages to Britain.

Genome-wide sequencing of 180 ancient individuals shows a continuous gradient of ancestry in Early-to-Mid-Holocene hunter-gatherers from the Baltic to the Transbaikal region and distinct contemporaneous groups in Northeast Siberia, and provides insights into the origins of modern Uralic and Yeniseian speakers.

Sequences of 137 ancient and 502 modern human genomes illuminate the population history of the Eurasian steppes after the Bronze Age and document the replacement of Indo-European speakers of West Eurasian ancestry by Turkic-speaking groups of East Asian ancestry.

Analyses of ancient human DNA show that cultural and political transformations in Central Europe during the second half of the first millennium ce were associated with movements of Slavic populations into Germany, Poland and Croatia.

Over 20 species of geographically and phylogenetically diverse bird species produce convergent whining vocalizations towards their respective brood parasites. Model presentation and playback experiments across multiple continents suggest that these learned calls provoke an innate response even among allopatric species.

New genome-wide data for ancient, Bronze Age individuals, including Minoans, Mycenaeans, and southwestern Anatolians, show that Minoans and Mycenaeans were genetically very similar yet distinct, supporting the idea of continuity but not isolation in the history of populations of the Aegean.

The role of wild and domesticated animals on alpine ecosystems is unclear. Here, the authors use sedaDNA from 14 European alpine lakes to demonstrate a positive association between wild and domesticated animal and plant diversity through the past 14 thousand years.

Recent advances in high-throughput sequencing techniques have enabled the analysis of ancient human genomes. Here the authors sequence ancient human genomes that span a period of 5,000 years, to understand the ancestral influence on Europe's genetic landscape.

Genome-wide data from 400 individuals indicate that the initial spread of the Beaker archaeological complex between Iberia and central Europe was propelled by cultural diffusion, but that its spread into Britain involved a large-scale migration that permanently replaced about ninety per cent of the ancestry in the previously resident population.

Gretzinger et al. examine genetic evidence from 31 Iron Age individuals in southern Germany and find that this early Celtic society probably had a dynastic system of matrilineal inheritance, with a network of well-connected elites covering a broad territory.

The authors generate a genome-wide dataset of 102 individuals who lived in Crete, the Greek mainland and the Aegean islands between the Neolithic and the Iron Age, identifying high levels of biological and cultural connectedness within the ancient Aegean.

Genome-wide ancient DNA data from 225 individuals who lived in southeastern Europe between 12000 and 500 bc reveals that the region acted as a genetic crossroads before and after the arrival of farming.

gLike infers population demographic histories with a variety of complex admixture events by analysis of graphs of states, which conceptualize the relationships of all lineages found in trees encoded in the ancestral recombination graph.

Analysis of DNA from ancient individuals of the Near East documents the extreme substructure among the populations which transitioned to farming, a structure that was maintained throughout the transition from hunter–gatherer to farmer but that broke down over the next five thousand years.

Here, the authors look at present day and medieval genome samples from Northern France to piece together demographic history and population structure across Brittany and the Loire basin.

Upper Palaeolithic and Mesolithic genomes from western Europe and the Caucasus reveal a previously undescribed strand of Eurasian ancestry with a deep divergence from other hunter-gatherer genomes. This had a profound impact on ancient and modern populations from the Atlantic to Central Asia.

Analyses of 34 ancient genomes from northeastern Siberia, dating to between 31,000 and 600 years ago, reveal at least three major migration events in the late Pleistocene population history of the region.

Population genetics analysis in a phylogenetic framework shows convergent evolution in the genomes of five brood-parasitic species, including selection on genes involved in spermatogenesis, sperm function and nervous system development.

Carbon and nitrogen isotope measurements of crop remains from archaeological sites in northern Mesopotamia show labour-intensive practices such as manuring and water management forming an integral part of agriculture since the seventh millennium bc.

A genome-wide analysis of 69 ancient Europeans reveals the history of population migrations around the time that Indo-European languages arose in Europe, when there was a large migration into Europe from the Eurasian steppe in the east (providing a genetic ancestry still present in Europeans today); these findings support a ‘steppe origin’ hypothesis for how some Indo-European languages arose.

Raman imaging offers great potential in biomedical imaging due to the combination of specificity and sensitivity. Here, the authors show nanoparticles functionalized with a chalcogenopyrylium reporter molecule, giving bright probes with low limits of detection for in vivoimaging.

The origin and dispersal of the chicken across Eurasia is unclear. Here, the authors examine eggshell fragments from southern Central Asia with paleoproteomics to identify chicken eggshells, suggesting that chickens may have been an important dietary component as early as 400BCE.

To make machine-learning analyses in the life sciences more computationally reproducible, we propose standards based on data, model and code publication, programming best practices and workflow automation. By meeting these standards, the community of researchers applying machine-learning methods in the life sciences can ensure that their analyses are worthy of trust.

Examination of archaeological pottery residues and modern genes suggest that environmental conditions, subsistence economics and pathogen exposure may explain selection for lactase persistence better than prehistoric consumption of milk.

The second plague pandemic, caused by Yersinia pestis, started in the 14th century and recurred in Europe until the 18th century. Here, the authors reconstruct ancient Y. pestis genomes from human remains spanning this period, shedding light into the phylogeography and population structure of the European strains.

Topological antiferromagnetic spin textures, including merons, antimerons, and bimerons, are demonstrated in synthetic antiferromagnets by three-dimensional vector imaging of the Néel order parameter and investigated by micromagnetic analysis.

The authors use modelling to show that the network of trading routes known as the Silk Road emerged from hundreds of years of interactions between pastoralists as they moved their herds and flocks between higher and lower elevations in generally mountainous regions.

Analysis of 273 ancient horse genomes reveals that modern domestic horses originated in the Western Eurasian steppes, especially the lower Volga-Don region.

Tin has been ubiquitous throughout the course of human history, from Bronze Age tools to lithium-ion battery components, yet Michael A. Tarselli warns it should not be deemed pedestrian. Its tendency to linger in human tissues presents a dangerous side that steers researchers towards greener chemistries.

Genomic analysis of Plasmodium DNA from 36 ancient individuals provides insight into the global distribution and spread of malaria-causing species during around 5,500 years of human history.