retrogénezés

Retrogenezis is a term that describes a hypothetical process where a species or organism evolves backward in time, reverting to ancestral traits or forms. This concept is not supported by mainstream evolutionary biology. Evolutionary processes are generally understood to be forward-moving, driven by natural selection acting on random mutations, leading to adaptation and diversification. The idea of retrogenezis suggests a reversal of this process, where complex traits might be lost to return to simpler states, or even an organism physically de-evolving.

While the concept of losing traits through evolutionary processes is real (e.g., the loss of eyes in cave-dwelling animals), this is a form of adaptation to specific environments, not a temporal regression of the species' lineage. Retrogenezis as a complete reversal of evolutionary history is primarily found in speculative fiction, philosophical discussions, or as a misunderstood interpretation of evolutionary concepts. In scientific contexts, evolution is viewed as a branching tree of life, not a linear path that can be retraced. Therefore, retrogenezis remains a theoretical construct without empirical evidence or scientific validation.