Scientists have now replicated that technique to produce self-folding paper structures. Like plants, paper is made up mostly of cellulose fibers. In both cases, when those fibers absorb water, they ...

The main mechanism behind plant movement is water absorption and release; the cellulose present in plant tissues draws water in and expands, and the underlying arrangement of cellulose fibers guides ...

When natural motion comes to mind, plants are most likely at the bottom of most people's list. The truth is that plants can perform complex movements, but they only do so very slowly. The main ...