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The measure-unit of evolution

A Ferracin, R Paoluzi, M Benassi

    Bio Systems
    |April 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    This study challenges the idea of evolutionary progress, arguing that survival efficiency, not a linear increase in evolution, is key. It suggests current fitness measures are biased and proposes a new model for understanding evolution.

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    Area of Science:

    • Theoretical Biology
    • Evolutionary Theory
    • Philosophy of Science

    Background:

    • The concept of evolutionary progress, implying an increase in the 'degree' of evolution, is a common value judgment.
    • Existing measures of biological fitness often exhibit anthropocentric bias, evaluating organisms based on similarity to humans.

    Purpose of the Study:

    • To theoretically disprove the notion of increasing evolutionary degree.
    • To propose a functional definition of 'organism' based on bioenergetics and biological hierarchization.
    • To present a novel, albeit slightly heterodox, model for evolution.

    Main Methods:

    • Theoretical analysis based on the premise that survival efficiency correlates with regulative ability.
    • Critique of anthropocentric bias in current fitness metrics.

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  • Examination of evolution as a descriptive, time-dependent process.

    • Main Results:

    • Actual fitness measures are practically impossible to define objectively and are biased.
    • Every ecologically dominant species is maximally adapted to its current environment.
    • Evolutionary views are transient (transections), making generalized phylogenetic trees potentially trivial.

    Conclusions:

    • The idea of a quantifiable increase in the 'degree' of evolution is unfounded.
    • A functional definition of 'organism' is provided, integrating bioenergetic and hierarchical principles.
    • A new evolutionary model is proposed, challenging conventional perspectives.