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

Evidence of phenotypic parallelism is often used to infer the deterministic role played by natural selection. However, variation in the extent or direction of divergence is often evident among ...

Evolutionary biologists like to say that mutations are random but that selection is not; species are crafted by their environments. But if this is the case, why is it so hard to predict evolution? A ...

BLOOMINGTON, Ind. -- Believed critical for determining which individuals can -- or cannot -- successfully reproduce with each other, genitalia not only figure prominently in the origin of new species, ...