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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Technically speaking, every living thing on Earth can trace its origins to the sea. Some of these earliest creatures crawled onto land, evolving to become many different kinds of animals and insects—including, scientists believed for a long time, spiders and their relatives. A new study published today in Current Biology challenges the popular conception that spiders first emerged on land, …
Read More »Are you seeing brown recluse spiders? Here’s how to recognize them and stay safe Wichita Eagle Source link
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Dark shapes pictured on the surface of Mars resembling spiders. Image credits: NASA / ESA. For years, satellites around Mars have been finding mysterious, spider-like geological structures. Mars spiders, scientifically known as araneiform terrain, are unique geological formations predominantly found in the southern hemisphere of Mars. They appear as branching, spider-like channels etched into the Martian surface, sometimes spanning over …
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