Large quantity discrimination by North Island robins (Petroica longipes)

Relative quantity judgments in South American sea lions (Otaria flavescens)

(2011) José Z. Abramson et al.   ANIMAL COGNITION

Large Number Discrimination by Mosquitofish

(2010) Christian Agrillo et al.   PLoS One

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

(2009) P. Carazo et al.   ANIMAL COGNITION

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

(2009) JASON LOW et al.   IBIS

Beyond the number domain

(2009) Jessica F. Cantlon et al.   TRENDS IN COGNITIVE SCIENCES

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

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

Log or Linear? Distinct Intuitions of the Number Scale in Western and Amazonian Indigene Cultures

(2008) S. Dehaene et al.   SCIENCE

Defining a Link between Perceptual Learning and Attention

(2008) Yuko Yotsumoto et al.   PLOS BIOLOGY