Spiderwiki: "Spiders appear to offload cognitive tasks to their webs, making them one of a number of species with a mind that isn’t fully confined within the head."
https://www.quantamagazine.org/the-thoughts-of-a-spiderweb-20170523/
https://www.quantamagazine.org/the-thoughts-of-a-spiderweb-20170523/