caa a22 4500 605542651 CHVBK 20210128100922.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10071-014-0818-0 doi (NATIONALLICENCE)springer-10.1007/s10071-014-0818-0 Irrespective of size, scales, color or body shape, all fish are just fish: object categorization in the gray bamboo shark Chiloscyllium griseum [Elektronische Daten] [V. Schluessel, D. Duengen] Object categorization is an important cognitive adaptation, quickly providing an animal with relevant and potentially life-saving information. It can be defined as the process whereby objects that are not the same, are nonetheless grouped together according to some defining feature(s) and responded to as if they were the same. In this way, knowledge about one object, behavior or situation can be extrapolated onto another without much cost and effort. Many vertebrates including humans, monkeys, birds and teleosts have been shown to be able to categorize, with abilities varying between species and tasks. This study assessed object categorization skills in the gray bamboo shark Chiloscyllium griseum. Sharks learned to distinguish between the two categories, ‘fish' versus ‘snail' independently of image features and image type, i.e., black and white drawings, photographs, comics or negative images. Transfer tests indicated that sharks predominantly focused on and categorized the positive stimulus, while disregarding the negative stimulus. Springer-Verlag Berlin Heidelberg, 2014 Elasmobranch nationallicence Behavior nationallicence Cognition nationallicence Learning nationallicence Visual discrimination nationallicence Schluessel V. Institute of Zoology, Rheinische-Friedrich-Wilhelm Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany aut Duengen D. Institute of Zoology, Rheinische-Friedrich-Wilhelm Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany aut Animal Cognition Springer Berlin Heidelberg 18/2(2015-03-01), 497-507 1435-9448 18:2<497 2015 18 10071 https://doi.org/10.1007/s10071-014-0818-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10071-014-0818-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schluessel V. Institute of Zoology, Rheinische-Friedrich-Wilhelm Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany aut NATIONALLICENCE 700 1- Duengen D. Institute of Zoology, Rheinische-Friedrich-Wilhelm Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany aut NATIONALLICENCE 773 0- Animal Cognition Springer Berlin Heidelberg 18/2(2015-03-01), 497-507 1435-9448 18:2<497 2015 18 10071