| Literature DB >> 14260381 |
R J SCHUSTERMAN, W N KELLOGG, C E RICE.
Abstract
Two captive sea lions (Zalophus californianus) presented with a series of size-discrimination tasks showed preferences for the smaller of two targets and gave virtually errorless performances despite changes in the form and relative size of the targets. Further tests revealed that they were capable of discriminating a size-difference ratio as small as 1.06:1.Entities:
Keywords: BEHAVIOR, ANIMAL; CARNIVORA; DISCRIMINATION LEARNING; EXPERIMENTAL LAB STUDY; VISUAL PERCEPTION
Mesh：
Year: 1965 PMID： 14260381 DOI： 10.1126/science.147.3665.1594
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728