* Evolutionary Taxonomy: This system classifies organisms based on their evolutionary relationships, focusing on shared ancestry and the descent with modification of traits. It's grounded in the principles of Darwinian evolution, which emphasizes the role of natural selection and random mutations in shaping biodiversity.
* No Predetermined Plan: Evolutionary taxonomy rejects the idea of a pre-determined plan or "ladder of life" where organisms are moving towards a predetermined goal. Instead, it emphasizes the contingent nature of evolution, where changes occur due to chance events and environmental pressures.
* Randomness and Adaptation: The process of evolution is driven by random mutations and natural selection. Organisms with traits that make them better adapted to their environment are more likely to survive and reproduce, passing on those traits to their offspring. This process is inherently random and unpredictable.
* Emphasis on Shared Ancestry: Evolutionary taxonomy focuses on shared ancestry, highlighting the common descent of all living organisms. This approach emphasizes the interconnectedness of life and the process of diversification over time.
Therefore, a system of evolutionary taxonomy stands in stark contrast to traditional, pre-Darwinian approaches that often attributed organismal diversity to a divine plan or some predetermined design.