News of the WeekPALEOBIOLOGY

Revised Numbers Quicken the Pace of Rebound From Mass Extinctions

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Science  17 Feb 2006:
Vol. 311, Issue 5763, pp. 931
DOI: 10.1126/science.311.5763.931a

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Read literally, the past half-billion years of marine fossils say it took 5 million to 10 million years for new species to begin replacing the losses suffered during extinctions. But now researchers have removed some of fossil record's imperfections, and in this revised history, at least, there's no "traffic cop" to hold life back (see related story on Science Careers). (Read more.)