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How Not to Date a Volcano

Two teams of geologists looked at the same volcano field in Nevada, but came up with vastly different dates.

Paper View:  Cambrian Explosion Damage Control

Like some federal official holding a press conference after a disaster, a Harvard paleontologist has tackled the unenviable job of explaining what Darwin called the most severe challenge that could be levied against his theory: the fossil record. The challenge starts with a bang...
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