A molecular biologist receives protection for discoveries that could be millions of years old.

TWO years ago Raul J. Cano, a prominent molecular biologist, published evidence that he had brought back to life a microorganism that had been lifted from the stomachs of ancient bees preserved in amber over millions of years.

The scientific community was skeptical, with some researchers suggesting that Dr. Cano's samples had been contaminated and that what he and his former graduate student, Monica K. Borucki, had revived was in fact modern-day bacteria.

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Martha Carlin