Medicine: Regeneration Gap

Of all of nature's miracles, few have intrigued scientists more than the phenomenon of regeneration. The lowly starfish can regrow any missing parts and may even produce an entire creature from a single arm; the salamander can regenerate much of its body. Higher animals, however, lack this ability. Mammals cannot replace a missing tail or internal organs. In man, skin and bone regrowth comes closest to the true regenerative process.

Now a New York researcher believes that the power to regenerate may be provided artificially. Dr. Robert Becker, a professor of orthopedic surgery at the State University of New York's Upstate Medical...

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