Studying Regeneration for New Limbs, Organs

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Legend has it that salamanders are born in fire and that they have magical abilities to renew and nourish themselves in flames.

Real salamanders are none too fond of fire, but they do have amazing abilities to renew and regenerate themselves. David Gardiner, a research biologist at the University of California, Irvine, talks to Andrea Seabrook about why salamanders can regrow limbs and humans can't.

Gardiner says one day researchers will be able to tap into humans' intrinsic regenerative ability and scientists will be regrowing body parts, including organs.

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