Spontaneous discrimination of small quantities: shoaling preferences in angelfish (Pterophyllum scalare)

Can angelfish (Pterophyllum scalare) count? Discrimination between different shoal sizes follows Weber’s law

(2010) Luis M. Gómez-Laplaza et al.   ANIMAL COGNITION

Free-ranging dogs assess the quantity of opponents in intergroup conflicts

(2010) Roberto Bonanni et al.   ANIMAL COGNITION

Do wood ducks use the quantity of eggs in a nest as a cue to the nest’s value?

(2010) Nicole S. Odell et al.   BEHAVIORAL ECOLOGY

Quantity discrimination in salamanders

(2010) P. Krusche et al.   JOURNAL OF EXPERIMENTAL BIOLOGY

Ontogeny of Numerical Abilities in Fish

(2010) Angelo Bisazza et al.   PLoS One

Quantity discrimination in Tenebrio molitor: evidence of numerosity discrimination in an invertebrate?

(2009) P. Carazo et al.   ANIMAL COGNITION

Local rather than global processing of visual arrays in numerosity discrimination by pigeons (Columba livia)

(2009) Jacky Emmerton et al.   ANIMAL COGNITION

Horses (Equus caballus) select the greater of two quantities in small numerical contrasts

(2009) Claudia Uller et al.   ANIMAL COGNITION

Disentangling the effects of group size and density on shoaling decisions of three-spined sticklebacks (Gasterosteus aculeatus)

(2009) Joachim G. Frommen et al.   BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY

Use of Number by Fish

(2009) Christian Agrillo et al.   PLoS One

Arithmetic in newborn chicks

(2009) R. Rugani et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

The discrimination of discrete and continuous amounts in African grey parrots (Psittacus erithacus)

(2008) Syrina Al Aïn et al.   ANIMAL COGNITION

Do fish count? Spontaneous discrimination of quantity in female mosquitofish

(2008) Christian Agrillo et al.   ANIMAL COGNITION

Oscillations in shoal cohesion in zebrafish (Danio rerio)

(2008) Noam Y. Miller et al.   BEHAVIOURAL BRAIN RESEARCH

Choice of Female Groups by Male Mosquitofish (Gambusia holbrooki)

(2008) Christian Agrillo et al.   ETHOLOGY

Quantity discrimination in felines: a preliminary investigation of the domestic cat (Felis silvestris catus)

(2008) Paola Etel Pisa et al.   JOURNAL OF ETHOLOGY

Discrimination of small numerosities in young chicks.

(2008) Rosa Rugani et al.   JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL LEARNING AND COGNITION

Individual differences in non-verbal number acuity correlate with maths achievement

(2008) Justin Halberda et al.   NATURE