Each human being consists of two parts: an immaterial soul (the essential part) and a body. Souls have mental properties (sensations, thoughts, purposes, etc.) while bodies have physical properties (mass, volume, etc.). It is most improbable that there is a scientific explanation (e.g., a Darwinian explanation) of the evolution of souls. But since it is probable that God brings about humans, it is probable that he brings about their essential parts — souls.
Keywords: Darwinism, mental properties, souls