Thursday, March 25, 2010
Convergent and Parallel Evolution
Divergent evolution is the most well known form of evolution - the evolution of one species into two distinctively different species. However, on page 91 Coyne mentions a wholly different form of evolution that caused the formation of similar body plans and physiological traits between succulents in North America and succulents in Old World deserts. This convergence to similar physical structures came as the result of similar environmental conditions and niches. Two modes of evolution that work in such a manner are Parallel Evolution and Convergent Evolution. What is the difference between these two forms of evolution? Provide examples of each.