How does the spider learn to make its web?
Is it just instinct? It looks like an artifact with not easy procedure to deploy at all. This tool definitely requires planificación and mind to visualice the result in advance, something not usual in animals.
Does it learn from other spiders? I don’t think so because if we isolate a baby spider it could manage to make its web.
Could we asume a certain level of intelligence in spiders? At lest a high level making web structures. For sure we don't know the hidden goals/plans of nature. And that's not very important.