Social facilitation of acoustic training in the common carp Cyprinus carpio (L.)
Supportive and tolerant relationships among male Tibetan macaques at Huangshan, China
Seasonal singing patterns and individual consistency in song activity in female European starlings (Sturnus∼vulgaris)
Experimental evidence for the volitional control of vocal production in an immature gibbon
Memory decay and cache site preferences in hoarding coal tits --- a laboratory study
The role of food- and object-sharing in the development of social bonds in juvenile jackdaws (Corvus monedula)