New biological discoveries suggest a need for an expanded evolutionary theory
In short: Since the 1940s, the 'modern synthesis' has been the foundation of evolutionary biology. However, researchers argue that recent advances in molecular biology, systems biology, and niche construction reveal complexities that the traditional, gene-centric framework cannot fully capture.
The proposed extended synthesis aims to integrate new findings—such as ecological development and multiple inheritance systems—into a unified theory. This framework shifts focus from simple, one-way causation to multilevel, reciprocal interactions between organisms and their environments.
As a theoretical review, this paper synthesizes existing scientific developments to propose a new conceptual logic rather than presenting new experimental data.
Why it matters: Evolutionary biology may be moving toward a more complex model that includes environmental and social interactions alongside genetics.
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Sources
- Source: Research: Muller (2017). Why an extended evolutionary synthesis is necessary. Interface Focus. · cc-by
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