Submitted by psychoxxsurfer t3_z7n4uk in Showerthoughts
Arstanishe t1_iy9lwgt wrote
Reply to comment by baumpop in Spiders were probably an absolute nightmare to early mammals. by psychoxxsurfer
Afaik, the first proto-mammals were therapsids, which were not that small. However, most mammals (or all?) I can't remember - came from rodent-like creatures after the cretaceous extinction event 65 mil ago. But that time insects were definitely even smaller...
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