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Example of Punctuated Equilibrium

This is a biological theory related to periodic evolution. The theory of punctuated equilibrium defines this process as a state of relative genetic stability, 'punctuated' by bursts of evolution. The theory comes into regular dispute in biological studies, which identify areas of evolution which appear to contradict the 'stability' in the sense that no micro forms of evolution occur.

Examples of Punctuated Equilibrium:


Image Example of Punctuated Equilibrium:
Speciation: creation of sub species by evolutionary adaption after a long period of single species forms.
Insect evolution:Some species of white moths underwent complete change of pigmentation during the Industrial Revolution to adapt to changed environments in which white coloring was a liability to predation.
http://en.wikipedia.org/wiki/Punctuated_equilibrium
http://evolution.berkeley.edu/evosite/evo101/VIIA1bPunctuated.shtml

Punctuated equilibrium, bottom, consists of morphological stability and rare bursts of evolutionary change.