Shifting balance theory Shifting balance theory The shifting balance theory is a theory of evolution proposed in 1932 by Sewall Wright, suggesting that adaptive evolution may proceed most quickly when a population divides into subpopulations with restricted gene flow. The name of the theory is borrowed from Wright's metaphor of fitness landscapes (evolutionary landscapes), attempting to explain how a population may move across an adaptive valley to a higher adaptive peak. According to the theory, this movement occurs in three steps: Although shifting balance theory has been influential in evolutionary biology, inspiring the theories of quantum evolution and punctuated equilibrium, little empirical evidence
Jewish views on evolution President of the National Jewish Center for Learning and Leadership, intelligent design is "their attempt to confirm what they already believe." Jewish organizations in the United States have been steadfast in their opposition to the teaching of intelligent design in public schools, charging that to do so would violate the separation of church and state. Jewish views on evolution Jewish views on evolution includes a continuum of views about the theory of evolution, experimental evolution, the origin of life, age of the universe, evolutionary creationism, and theistic evolution. Today, many Jews accept the theory of evolution and do not see