The increasing availability of genomic resequencing data sets and high-quality reference
genomes across the tree of life present exciting opportunities for comparative population …

Evolutionary biologists have thought about the role of genetic variation during adaptation for
a very long time—before we understood the organization of the genetic code, the …

Genome sequencing enables answering fundamental questions about the genetic basis of
adaptation, population structure and epigenetic mechanisms. Yet, we usually need a …

Diadromy, the predictable movements of individuals between marine and freshwater
environments, is biogeographically and phylogenetically widespread across fishes. Thus …

Parallel adaptation provides valuable insight into the predictability of evolutionary change
through replicated natural experiments. A steadily increasing number of studies have …

Adaptation often proceeds from standing variation, and natural selection acting on pairs of
populations is a quantitative continuum ranging from parallel to divergent. Yet, it is unclear …

Gene flow has tremendous importance for local adaptation, by influencing the fate of de
novo mutations, maintaining standing genetic variation and driving adaptive introgression …

Biologists have long been intrigued by apparently predictable and repetitive evolutionary
trajectories inferred across a variety of lineages and systems. In recent years, high …

Adaptive radiations are characterized by rapid ecological diversification and speciation
events, leading to fuzzy species boundaries between ecologically differentiated species …

Hydrogen sulfide is a toxic gas that disrupts numerous biological processes, including
energy production in the mitochondria, yet fish in the Poecilia mexicana species complex …