Researchers in China and the US have found material in a dinosaur fossil that they claim looks like DNA. In a new paper in National Science Review, Alida Bailleul and colleagues report on their discovery of remarkably well-preserved cartilage from a Late Cretaceous dinosaur, Hypacrosaurus, from North America, dated at between 74 million and 80 million years old. They highlight microstructures within the cartilage that they identify as nuclei and chromosomes from within its cells and also DNA. If accurate, this would be a hugely significant find. But can this report stand the scrutiny of a sceptical world? There are…

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