Tag: Orthogenesis

April 7, 2026 / Mohammed looti

ORTHOGENETIC PRINCIPLE

Historical Foundations and the Emergence of the Orthogenetic Principle The study of evolutionary biology has long been characterized by a quest to understand the underlying mechanisms that drive the transformation of species over geological time. While the Darwinian model emphasizes natural selection acting upon random variations, the Orthogenetic Principle emerged as a significant alternative, suggesting […]

September 27, 2025 / Mohammed looti

ORTHOGENESIS

Orthogenesis Introduction to Orthogenesis Orthogenesis, also referred to as orthogenetic evolution, represents a historical concept within evolutionary biology proposing that evolutionary change occurs in a predetermined, single, and linear direction. This idea fundamentally posits that internal forces or mechanisms within an organism’s lineage guide its development towards a specific, often more complex or ‘perfected,’ form, […]