I Know My Neighbour: Individual Recognition in Octopus vulgaris Tricarico, Elena ; Borrelli, Luciana ; Gherardi, Francesca ; Fiorito, Graziano Abstract Publication: PLoS ONE Pub Date: April 2011 DOI: 10.1371/journal.pone.0018710 Bibcode: 2011PLoSO...618710T