Definitions for "Parallel evolution"
The evolution along similar lines of systematic groups that had been separated geographically at an earlier stage in their history.
Evolutionary patterns that exist in more than one lineage. Often the result of underlying developmental processes. Parapatric speciation [Gr. para: beside + patria: fatherland] • Development of reproductive isolation when the barrier is not geographic but is a difference in some other physical condition (such as soil nutrient content) that prevents gene flow between the subpopulations. (Contrast with allopatric speciation, sympatric speciation.)
Sphinx moths such as Hemaris diffinis and Proserpinus flavofasciatus show parallel evolutionary development, both are diurnal nectar feeders and also bumblebee mimics. Differs from convergent evolution mainly in the degree of relationship of the organisms involved. See convergent evolution.
Keywords:  paleoanthropology
The development of similar characteristics in organisms that are not closely related (not part of a monophyletic group) due to adaptation to similar environments and/or strategies of life.