Evolutionary home advantage: Field experiment reveals adaptation to be surprisingly local

A research team from the University of Bern has shown in a large-scale field experiment that populations of the same fish species can be much more fine-tuned to their local environments than previously thought. Habitats that appear nearly identical to us can therefore make a decisive difference in evolution. This hidden diversity is not only key to understanding how biodiversity arises, but also has important implications for its conservation.

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