ABSTRACT: This philosophy article provides a reductive explanation of ‘phenomenal experience’ and in doing so, provides an explanation for the emergence and evolution of human consciousness. The explanation demonstrates compliance with philosophical criteria. It does this by describing and explaining the relationship between a hierarchy of complex constructs. In doing so, it closely relates the development of emergent mind states to the evolution of biological structure and behaviour. The article focuses on those aspects of the reductive explanation that provide insight into unique human characteristics, specifically in relation to social behaviours, emotion, the philosophy of language, and creativity. Finally, the Read on. . .