A group of researchers used novel and powerful methods to disentangle the patterns of parallel evolution of freshwater three-spined sticklebacks at different geographic scales across their ...

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 ...

ANN ARBOR, Mich.---Wings, spines, saber-like teeth---nature and the fossil record abound with examples of structures so useful they've evolved independently in a variety of animals. But scientists ...

A report offers a detailed description of the first nearly complete skeleton of an extinct large dolphin, discovered in what is now South Carolina. The 15-foot-long dolphin (Ankylorhiza tiedemani comb ...