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Ants recognize foes and not friends
Fernando J. Guerrieri, Volker Nehring, Charlotte G. Jørgensen, John Nielsen, C. Giovanni Galizia and Patrizia d'Ettorre
Proc. R. Soc. B published online 1 April 2009 doi: 10.1098/rspb.2008.1860
Supplementary data "Data Supplement" http://rspb.royalsocietypublishing.org/content/suppl/2009/03/27/rspb.2008.1860.DC1.h tml References This article cites 38 articles, 9 of which can be accessed free http://rspb.royalsocietypublishing.org/content/early/2009/03/26/rspb.2008.1860.full.ht ml#ref-list-1
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