Quantity discrimination in jungle crows, Corvus macrorhynchos

Ordering of the Numerosities 1 to 9 by Monkeys

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The Representations Underlying Infants' Choice of More: Object Files Versus Analog Magnitudes

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Spontaneous number representation in semi–free–ranging rhesus monkeys

Susan Carey, Lilan B. Hauser · Proceedings of the Royal Society B Biological Sciences · 2000 · 511 citations · Full text

Numerical competence in animals: Definitional issues, current evidence, and a new research agenda

Hank Davis, Rachelle Pérusse · Behavioral and Brain Sciences · 1988 · 509 citations

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Numerosity discrimination in infants: Evidence for two systems of representations

Fei Xu · Cognition · 2003 · 476 citations

Developmental Cognitive Neuroscience, Psycholinguistics, Cognition +17