We are the ones who interrupt the cycle of a leaf, giving it new meanings, functions, ideas, and thoughts. As an example, the first designers were Homo Sapiens, but many other living beings also fit this description. Changing the shape of an object, reusing it, giving it new meanings, adding ideas, and most importantly, actions taken to meet a need are what we do. Humans began by chipping a stone to make a tool, in an effort to dominate other living things. Or they began using a hollow as a shelter, these are similar. There is a need and there is what exists. With these, they meet the need and give new meanings to what exists.
