Social learning in Cartilaginous fish (stingrays Potamotrygon falkneri )

摘要: Social learning is considered one of the hallmarks cognition. Observers learn from demonstrators that a particular behavior pattern leads to specific consequence or outcome, which may be either positive negative. In last few years, social has been studied in variety taxa including birds and bony fish. To date, there are studies demonstrating processes cartilaginous Our study shows fish freshwater stingrays (Potamotrygon falkneri) capable isolates involved. Using task required animals remove food reward tube, we found observers needed significantly (P < 0.01) fewer trials extract than demonstrators. Furthermore, immediately showed (P < 0.05) higher frequency most efficient “suck undulation” strategy exhibited by experienced demonstrators, suggesting imitation. Shedding light on advances systematic comparison cognition between aquatic terrestrial vertebrates helps unravel evolutionary origins