FOCUS – From stunning images from the James Webb Telescope to the first xenograft of a pig’s heart to humans, a roundup of the latest discoveries.
Discovery of the “world’s oldest” DNA
A giant step in the history of paleogenetics. An international team of researchers has managed to identify DNA of animals, plants and microbes dating back around 2 million years, by taking samples of preserved sediments in the permafrost of the far north of Greenland.
Mastodons, reindeer, hares, lemmings and geese, populating forests of poplars, birches and cedars … The scientists, who publish in the journal Naturehave reconstituted the entire ecosystem of this region of the globe which was then experiencing much milder temperatures (more than ten degrees higher).
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