Geometric morphometrics—a set of methods for the statistical analysis of shape once
saluted as a revolutionary advancement in the analysis of morphology—is now mature and …

As is true of virtually every realm of the biological sciences, our understanding of speciation
is increasingly informed by the genomic revolution of the past decade. Investigators can ask …

The transition from 'well-marked varieties' of a single species into 'well-defined species'—
especially in the absence of geographic barriers to gene flow (sympatric speciation)—has …

Using sampling experiments, we found that, when there are fewer groups than variables,
between-groups PCA (bgPCA) may suggest surprisingly distinct differences among groups …

Parallelism, the evolution of similar traits in populations diversifying in similar conditions,
provides strong evidence of adaptation by natural selection. Many studies of parallelism …

Cichlid fishes are hypothesized to encompass several independent adaptive radiations that
display increased diversification rates and impressive ecological heterogeneity. Here, I …

The formation of species in the absence of geographic barriers (ie sympatric speciation)
remains one of the most controversial topics in evolutionary biology. While theoretical …

Closely related species often show substantial differences in ecological traits that allow them
to occupy different environmental niches. For few of these systems is it clear what the …

Evolutionary radiations are responsible for much of the variation in biodiversity across taxa.
Cichlid fishes are well known for spectacular evolutionary radiations, as they have …

The identification of thousands of variants across the genomes and their accurate
genotyping are crucial for estimating the genetic parameters needed to address a host of …