One of the things that makes developing effective treatments for Parkinson's disease so challenging is its complexity. While some forms are caused by genetics, others have environmental factors, and ...

This video examines three animals whose current scientific classifications are being questioned. Through genetic data, behavioral analysis, and fossil comparisons, researchers reveal inconsistencies ...

List of illustrations -- Acknowledgments -- Introduction -- 1. Why classify? -- 2. The Aristotelian framework -- 3. The Darwinian pivot -- 4. Evolutionary taxonomy and the cladistic challenge -- 5.