Punctuated Equilibria at 50: Revisiting Evolution’s Boldest Idea
Fifty years ago, palaeontologists Niles Eldredge and Stephen Jay Gould published one of the most provocative ideas in evolutionary science: punctuated equilibria. In their 1972 paper, they argued that species don’t always evolve through slow, steady change. Instead, the fossil record shows long periods of stasis, times when species remain remarkably stable, interrupted by brief bursts of evolutionary innovation linked to the origin of new species.
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