99 million-year-old spider mummies reveal moms cared for teeny spiderlings

by Msnbctv news staff


A feminine of the now-extinct Lagonomegopidae spider household guards her egg sac in a tree cavity. (Picture credit score: Painted by Xiaoran Zuo; Xiangbo Guo, Paul Selden and Dong Ren; Proceedings of the Royal Society B (2021))

Large-eyed spiders have been possible guarding their egg sacs and probably caring for already hatched spiderlings once they have been trapped in sticky tree resin some 99 million years in the past. That resin hardened, locking up these arachnid mamas in 4 chunks of amber not too long ago mined in Myanmar, and now thought-about the oldest proof of maternal care in spiders, researchers say. 

Though the discovering is not sudden, on condition that many spider moms care for his or her offspring these days, “it is beautiful to have precise bodily proof by way of these little snapshots within the fossil file,” examine co-researcher Paul Selden, a distinguished professor emeritus of the Division of Geology on the College of Kansas, instructed Reside Science.



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