Why do adult dogs (Canis familiaris) commit the A-not-B search error?

Journal of Comparative Psychology (2014) - Comment
pubmed: 23957741 doi: 10.1037/a0033084 issn: 1939-2087 issn: 0735-7036

Zsófia Sümegi, Anna Kis, Ádám Miklósi, József Topál