The Role of Body Surface Area in Quantity Discrimination in Angelfish (Pterophyllum scalare)

Discrimination of small quantities by fish (redtail splitfin, Xenotoca eiseni)

(2013) Gionata Stancher et al.   ANIMAL COGNITION

Large Number Discrimination in Newborn Fish

(2013) Laura Piffer et al.   PLoS One

Dopamine receptor antagonism disrupts social preference in zebrafish: a strain comparison study

(2012) Tanya Scerbina et al.   AMINO ACIDS

Bears ‘count’ too: quantity estimation and comparison in black bears, Ursus americanus

(2012) Jennifer Vonk et al.   ANIMAL BEHAVIOUR

Competitor size, male mating success and mate choice in eastern mosquitofish, Gambusia holbrooki

(2012) Isobel Booksmythe et al.   ANIMAL BEHAVIOUR

Putting the elephant back in the herd: elephant relative quantity judgments match those of other species

(2012) Bonnie M. Perdue et al.   ANIMAL COGNITION

Quantification abilities in angelfish (Pterophyllum scalare): the influence of continuous variables

(2012) Luis M. Gómez-Laplaza et al.   ANIMAL COGNITION

A new training procedure for studying discrimination learning in fish

(2012) Christian Agrillo et al.   BEHAVIOURAL BRAIN RESEARCH

Evidence for Two Numerical Systems That Are Similar in Humans and Guppies

(2012) Christian Agrillo et al.   PLoS One

Numerical assessment and individual call discrimination by wild spotted hyaenas, Crocuta crocuta

(2011) Sarah Benson-Amram et al.   ANIMAL BEHAVIOUR

Ecological and social factors affect the occurrence and outcomes of intergroup encounters in chimpanzees

(2011) Michael L. Wilson et al.   ANIMAL BEHAVIOUR

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

(2011) Luis M. Gómez-Laplaza et al.   ANIMAL COGNITION

Numerical competence in animals, with an insight from ants

(2011) Zhanna Reznikova et al.   BEHAVIOUR

Tracking of food quantity by coyotes (Canis latrans)

(2011) Joseph M. Baker et al.   BEHAVIOURAL PROCESSES

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

Size-Assortative Shoaling in the Guppy (Poecilia reticulata): The Role of Active Choice

(2010) Katherine A. Jones et al.   ETHOLOGY

Quantity discrimination in salamanders

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

Large Number Discrimination by Mosquitofish

(2010) Christian Agrillo et al.   PLoS One

Ontogeny of Numerical Abilities in Fish

(2010) Angelo Bisazza et al.   PLoS One

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

(2009) Jacky Emmerton 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

Viewpoint: Wild number sense in brood parasitic Brown-headed Cowbirds

(2009) JASON LOW et al.   IBIS

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

Perception of food amounts by chimpanzees based on the number, size, contour length and visibility of items

(2008) Michael J. Beran et al.   ANIMAL BEHAVIOUR

Relative quantity judgment by Asian elephants (Elephas maximus)

(2008) Naoko Irie-Sugimoto et al.   ANIMAL COGNITION

Do fish count? Spontaneous discrimination of quantity in female mosquitofish

(2008) Christian Agrillo et al.   ANIMAL COGNITION

The social zebrafish: Behavioral responses to conspecific, heterospecific, and computer animated fish

(2008) Cristina Saverino et al.   BEHAVIOURAL BRAIN RESEARCH

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

Adaptive numerical competency in a food-hoarding songbird

(2008) S. Hunt et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES