Duration of dogs' (Canis familiaris) working memory in search for disappearing objects Sylvain FisetClaude BeaulieuFrance Landry Original Article 12 December 2002 Pages: 1 - 10
Social learning of food types in zebra finches (Taenopygia guttata) is directed by demonstrator sex and feeding activity M. KatzR. F. Lachlan Original Article 08 February 2003 Pages: 11 - 16
Altering "motivational" variables alters induction produced by upcoming food-pellet reinforcement Jeffrey N. WeatherlyEmily I. L. ArthurLindsey M. Tischart Original Article 25 February 2003 Pages: 17 - 26
A test of object permanence in a new-world monkey species, cotton top tamarins (Saguinus oedipus) Julie J. NeiworthEric SteinmarkCatherine DeHart Original Article 21 February 2003 Pages: 27 - 37
How owls structure visual information Robert F. van der WilligenBarrie J. FrostHermann Wagner Original Article 20 February 2003 Pages: 39 - 55
Social mimetic behaviour and social anticipation in dogs: preliminary results Enikő KubinyiÁdám MiklósiVilmos Csányi Short Communication 22 February 2003 Pages: 57 - 63
Evidence of self-referent phenotype matching revisited: airing out the armpit effect James F. HareSpencer G. SealyRebecca L. Stewart Commentary Pages: 65 - 68
Designing and interpreting experimental tests of self-referent phenotype matching Mark E. HauberPaul W. Sherman Commentary 25 February 2003 Pages: 69 - 71
Kin recognition by self-referent phenotype matching: weighing the evidence Jill M. MateoRobert E. Johnston Commentary 22 February 2003 Pages: 73 - 76