Sexual Signalling in Propithecus verreauxi: Male ``Chest Badge'' and Female Mate Choice Dall'Olio, Stefania ; Norscia, Ivan ; Antonacci, Daniela ; Palagi, Elisabetta Abstract Publication: PLoS ONE Pub Date: May 2012 DOI: 10.1371/journal.pone.0037332 Bibcode: 2012PLoSO...737332D