Squirrel droppings: archives of a 700,000-year past
Des plantes, des graines mais aussi des mammouths, des bisons, des chevaux… L’ADN retrouvé dans des fèces du rongeur préservées dans le permafrost canadien a fait apparaître un environnement d’une extrême richesse.
DNA extracted from squirrel feces preserved in Canadian permafrost has revealed a remarkably rich ancient environment. The analysis identified genetic material from plants, seeds, and even large mammals like mammoths, bison, and horses. This discovery offers an unprecedented glimpse into ecosystems that existed hundreds of thousands of years ago. The preserved droppings act as time capsules, safeguarding invaluable ecological data. Scientists can reconstruct past biodiversity and environmental conditions through this unique source. It demonstrates the potential of overlooked biological samples for historical research.
This finding demonstrates how even seemingly insignificant biological samples can provide crucial insights into Earth's ancient ecosystems and biodiversity.
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