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Spiders
Discoveries520 million-year-old fossil solves important evolutionary mystery
Researchers have uncovered an incredibly rare and detailed fossil, named Youti yuanshi, that gives a peek inside one of the earliest ancestors of modern insects, spiders, crabs and centipedes.
Rebecca Shavit![](https://www.thebrighterside.news/uploads/2024/08/fossil.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
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