Tag Archives: 500MillionYearOld

A 500-Million-Year-Old Fossil Redefines Their Origins

A 500-Million-Year-Old Fossil Redefines Their Origins

In a fascinating study published in Current Biology, researchers have turned our understanding of arachnid evolution on its head. For years, scientists assumed that spiders, scorpions, and their kin evolved from land-dwelling ancestors. However, a fresh analysis of a 500-million-year-old fossil suggests that these creatures might have actually come from the oceans. Meet Mollisonia Symmetrica The star of this groundbreaking …

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500-Million-Year-Old Fossil Suggests Ocean Origin For Spiders : ScienceAlert

500-Million-Year-Old Fossil Suggests Ocean Origin For Spiders : ScienceAlert

The special brains of spiders may have started to evolve in the oceans, long before their ancestors crawled onto land. A fresh look at a 500-million-year-old fossil by researchers from the University of Arizona and Lycoming College in the US and King’s College London has revealed remarkable similarities between the brains of extinct marine arthropods and modern-day arachnids. The discovery …

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