Last updated: 22 april, 2010 - 15:37 GMT

Immortal worms that constantly replace their ageing cells

University of Nottingham photo of Planariam worm (flatworm) with no brain

A planarium worm (flatworm): this one has no brain

Scientists have identified the gene that allows a tiny flatworm to display amazing powers of regeneration.

It can even grow a new head after being decapitated.

Could this be any help to humans?

Dr Aziz Aboobaker, a biologist at the University of Nottingham, is the author of the study.

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First broadcast 22 April 2010

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