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 ...

New research findings help explain the progression of Alzheimer-related dementia in each patient. The findings outline a biological classification system that predicts disease severity. Alzheimer's ...

Introduction: Carving nature at its joints, or Why birds are not dinosaurs and men are not apes -- Part I. The Interrelationships of Organisms: 1. What this book is about -- 2. Classification -- Part ...

IN much of the academic teaching of biology at the present time, the view is expressed or implied that biological classification is meaningless except as a more or less convenient device for filing ...