After 11 years, the descendants of transferred guppies in Venezuela and Trinidad were significantly larger than their ancestors, indicating that the larger size of guppies was an adaptation to the new environment.

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The descendants of transferred guppies in Venezuela and Trinidad were indeed found to be significantly larger than their ancestors, a change attributed to adaptation to their new environments. This phenomenon is a classic example of rapid evolutionary change and natural selection, where the guppies adapted to different predation pressures and resource availability in their new habitats.

After 11 Years, the Descendants of Transferred Guppies in Venezuela