Mass Species Loss Stunts Evolution for Millions of Years

Mass Species Loss Stunts Evolution for Millions of Years

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Biological diversity—something that’s now imperiled by human appetites—may be a sustaining, stabilizing force on planetary scales, and its disruption self-perpetuating. “Earlier interpretations have looked at the Permian-Triassic extinction as purely the result of external physical processes,” said paleobiologist Jessica Whiteside of Brown University. “But low diversity itself can be a feedback.”

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