Where did spiders (arachnids) come from? What was their origin? Clearly, the fossil record shows spiders have always been spiders1,2 along with other chelicerates (a subphylum of the arthropods).
The alleged evolution of the chelicerates (i.e., Arachnida) has recently become complex and problematic. According to Sharma and Gavish-Regev writing in the Annual Review of Entomology, the “longstanding hypothese… More…
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