Nature is a complex causal network exhibiting diverse forms and species. These forms or rather systems are physically open, structurally complex and naturally adaptive. They interact with the surrounding media by operating a positive-feedback loop through which, they adapt, organize and self-organize themselves in response to the ever-changing environment. Interaction is a two-way process, by which a system extracts as well as dissipates information into the surrounding. Information transcends through the levels of hierarchy triggering a series of phenomena in nature. Every natural phenomenon thus forms a part of an infinite ("natural") causal chain.