520-million-year-old 3D preserved tiny fossil has the brain and nerves intact and it is shocking the scientists

A remarkably preserved 520-million-year-old Youti Yuanshi fossil, no bigger than a poppy seed, has unveiled unprecedented details of early arthropod anatomy. Using advanced imaging, researchers discovered internal organs, brain structures, and even nerves, providing insights into the evolution of segmented body parts and complex systems. This discovery illuminates the origins of arthropods and the development of biodiversity.

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