Genetic drift is one of the infrequently mentioned mechanisms of evolution along with our all-time favorite, natural selection, and the remaining two: mutation and migration.
Genetic drift is a form of selection by consequences. In genetic drift it is a case of being in the wrong place at the wrong time.
http://evolution.berkeley.edu/evosite/evo101/IIIDGeneticdrift.shtml
Unlike natural selection, which operates primarily [...]
