Scientists have extracted marrow from the bones of frogs and salamanders that di…
Scientists have extracted marrow from the bones of frogs and salamanders that died 10 million years ago in the muddy swamps of north-eastern Spain. The soft tissue may yield traces of protein and DNA, researchers report in the journal Geology. Bone marrow is the tissue that fills the centre of large bones, acting as a factory for producing new platelets and red and white blood cells.
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