Use of Number by Fish - Agrillo, Christian; Dadda, Marco; Serena, Giovanna; Bisazza, Angelo (PloS one, 2009)
Keywords: Animal behavior; Animal cognition; Animals; Aquatic insects; Birds; Callithrix jacchus; Cognitive ability; Cues; Cyprinodontiformes - physiology; Discrimination (Psychology); Evolutionary biology; Experimental psychology; Experiments; Fish; Fishes - physiology; Foraging behavior; Infants; Judgments; Mammals; Mathematical Concepts; Neuroscience/Animal Cognition; Neuroscience/Behavioral Neuroscience; Neuroscience/Psychology; Numerical analysis; Primates; Stimuli; Surface area; Surface matching; Variables