Study Unveils Evolution's Ability to Evolve, Enhancing Adaptation Over Generations
March 4, 2025
Recent research from the University of Michigan suggests that evolution itself may evolve, indicating that organisms can improve their ability to adapt over time.
The study, led by Bhaskar Kumawat, utilized computer simulations to create self-replicating, randomly mutating 'organisms' to observe evolutionary processes in a compressed timeframe.
These simulations allowed researchers to see how virtual organisms adapted to shifting environmental factors, alternating between beneficial and harmful conditions.
The findings revealed that when environmental conditions were cycled, populations became faster at adapting to new environments over time, leading to an exponential rise in mutations.
Interestingly, organisms in moderately changing environments evolved more rapidly, maintaining a steady rate of adaptation without complications.
The research indicated that increased evolvability is most effective over extended periods, with optimal environmental shifts occurring over at least 30 generations.
Once a population achieves a certain level of evolvability, this trait persists despite subsequent evolutionary pressures, suggesting a form of evolutionary optimization.
The concept of 'evolvability' refers to an organism's ability to adapt, and those facing no external pressures tend to remain stable and do not evolve significantly.
Remarkably, populations do not lose their 'evolvability' even after many generations in stable conditions, highlighting resilience in their adaptive capabilities.
Organisms increase their mutation rates in response to environmental changes, allowing them to adapt quickly for survival.
For example, a frog adapting to both extreme heat and cold exemplifies how diverse external conditions can lead to a significant increase in mutations.
Future research may explore applications of these findings in directed evolution, which mimics natural selection to engineer biological molecules.
Summary based on 2 sources
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VICE • Mar 3, 2025
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Popular Mechanics • Feb 27, 2025
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