Octopuses (Octopus bimaculoides) and cuttlefishes (Sepia pharaonis, S. officinalis) can conditionally discriminate.
Hvorecny LM, Grudowski JL, Blakeslee CJ, Simmons TL, Roy PR, Brooks JA, Hanner RM, Beigel ME, Karson MA, Nichols RH, Holm JB, Boal JG.
Anim Cogn. 2007 Oct;10(4):449-59. Epub 2007 Apr 17.PMID: 17437139 [PubMed - indexed for MEDLINE]Related articles