Beavers and the Bees Response

I found that this article was interesting in that it was not only about the architecture of animals, but the controversies regarding animal psychology. It was interesting birds nests, termite hills and beehives were more structured and intelligent than human architecture. I find this hard to fully believe. Birds are more of collectors and termites dig holes. I do think that beehives are very structured and thought out and very symmetrical. Spider webs are another engineering structure from animals that i feel may still be more advanced than some of our natural architecture. Their webs are extremely structured and organized. Also, they remake their webs frequently from destruction due to people and other animals and weather.
The author states that for beavers, form followed anatomy. This makes me wonder: what form humans would instinctively make? Is it an instinct that we create tools to help us build more complex forms? I feel that we have many more opportunities since we have opposable thumbs and a greater sense of common agreement on our imagination.