We are unconscious of most of our body's processes, thank goodness, because we'd screw it up if we weren't. The human body is so complex, with so many parts...a system which is far more complex than we can fully imagine. The idea that we are consciously care-taking such a large and mysterious system is ludicrous.
Lynn MargulisAll living beings, not just animals, but plants and microorganisms, perceive. To survive, an organic being must perceive - it must seek, or at least recognize, food and avoid environmental danger.
Lynn Margulis