Above 2,000 meters: Cova 338 redefines Pyrenean prehistory
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Updates every hour. Last Updated: 5-May-2026 10:15 ET (5-May-2026 14:15 GMT/UTC)
Beavers are spreading northwards into the Arctic and a new study provides detailed evidence of their expansion by dating the changes they have been making to the tundra landscape. The research, which combines tree ring analysis (looking at beaver browsing scars) with satellite imagery of surface water (highlighting dams), has allowed scientists to track and date beaver movements in remote areas of the Canadian Arctic.
At least seven individuals who lived about 100,000 years ago: the study—coordinated by researchers from the University of Bologna—is based on the analysis of ancient mitochondrial DNA from eight teeth found in the Stajnia Cave in Poland