LONDON, ENGLAND - APRIL 09: (FILE PHOTO) A preserved specimen of an Ethiopian endemic Acanthus plant is displayed in the Herbarium at The Royal Botanic Gardens, Kew on April 9, 2009 in London, ... more 
LONDON, ENGLAND - APRIL 09: (FILE PHOTO) A preserved specimen of an Ethiopian endemic Acanthus plant is displayed in the Herbarium at The Royal Botanic Gardens, Kew on April 9, 2009 in London, England. According to reports , the British Ecological Society's Journal of Ecology is set to publish a study that used the 150-year old pressed plants to investigate the effects of climate change. (Photo by Peter Macdiarmid/Getty Images) less 
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Getty Images | Photo By Peter Macdiarmid / Getty Images
Wed, Sep 22, 2010 4:50 AM EDT