Urban environments have the potential to influence the evolution of species in numerous ways. Some of these effects are nonadaptive, and are largely driven by changes in gene flow between populations.

Despite the increasingly clear picture of the evolution of birds from theropod dinosaurs that has emerged, a few scientists are still unconvinced. No alternative hypothesis has been offered to ...

The relative importance of punctuated and gradual patterns of evolution is a subject of debate and research. Charles Darwin understood that evolution was a slow and gradual process. By gradual ...