What is the mechanism that allows birds to build nests, beavers to build dams, or spiders to spin webs – without anyone teaching them how?

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Those are awfully complex structures, I couldn’t make one!

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Anonymous 0 Comments

A lot of people give reflexes as examples, but those aren’t exactly instincts. I believe a much better analogy of instincts in humans is throwing. Humans instinctively throw really damn well, better than any animal in fact. Every human can throw as part of their normal development with quite excellent accuracy. We do this without thinking about how far to extend our arms or what precise force to apply, we just go with the intention “I want to put this object there”. Perhaps it’s similar for animals? They just go with “want nest here” and their brains take over for the fine details.

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