JTW's Evolutionary Origins - Author: Gould, Stephan JayHOME Atavisms and Latent Vestigial Routines"The current challenge to traditional gradulistic accounts of evolutionary transitions will take root only if genetic systems contain extensive, hidden capacities for expressing small changes as large effects. Atavisms provide the most striking demonstration of this principle that I know... genetic systems are integrated products of an organisms's history, and they retain extensive latent capacities that can often be released by small changes."(Stephan Jay Gould, 1983, pp.181)
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