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I know this is nothing about PD, but I think it is fascinating. Plants can apparently recognize themselves and their siblings. If you could use a PD break, read on: http://www.sciencedaily.com/releases/2009/10/091014144734.htm Rayilyn Brown Director AZNPF Arizona Chapter National Parkinson Foundation [log in to unmask] ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn