Stephen Jay Gould's "Ontogeny and Phylogeny" traces the historical trajectory of the idea that individual development recapitulates the evolutionary history of species. The book begins with the pre-Socratic philosophers and follows the concept of recapitulation through its rise as a central tenet of 19th-century biology, notably associated with Ernst Haeckel's influential formulation. Gould meticulously documents the intellectual journey of this idea, culminating in its eventual scientific rejection in the early 20th century.
Readers will learn about the historical development and subsequent decline of the recapitulationist view as an explanation for the link between individual growth and evolutionary lineages. The book details how this specific concept, once a prominent answer to a major biological question, was critically examined and ultimately superseded by other evolutionary and developmental theories, providing a case study in the history of scientific thought.
Key concepts
- Ontogeny recapitulates phylogeny — The idea that the developmental stages of an individual organism mirror the evolutionary stages of its species or lineage.
- Recapitulation — The historical concept that individual embryonic development reflects the evolutionary history of the species.
- Haeckel's answer — Ernst Haeckel's proposed explanation for the relationship between individual development and species evolution, centered on recapitulation.