Baby fish working out: an epigenetic source of adaptive variation in the cichlid jaw.

Abstract excerpt

Understanding the developmental processes that underlie the production of adaptive variation (i.e. the 'arrival of the fittest') is a major goal of evolutionary biology. While most evo-devo studies focus on the genetic underpinnings of adaptive phenotypic variation, factors beyond changes in nucleotide sequence can also play a major role in shaping developmental outcomes. Here, we document a vigorous but...

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