It seems that some people are highly sceptical (or jealous?) about last week's Science paper on arsenic-base life. http://www.slate.com/id/2276919/pagenum/all/ Enjoy! Cedric -- ================================================================== Cedric Simillion, PhD Tel:+32 (0)9 331 38 23 fax:+32 (0)9 3313809 VIB Department of Plant Systems Biology, Ghent University Technologiepark 927, 9052 Gent, BELGIUM http://bioinformatics.psb.ugent.be ==================================================================