Weber's Law influences numerical representations in rhesus macaques (Macaca mulatta) Kerry E. JordanElizabeth M. Brannon Original Article 10 March 2006 Pages: 159 - 172
Limited spread of innovation in a wild parrot, the kea (Nestor notabilis) Gyula K. GajdonNatasha FijnLudwig Huber Original Article 28 March 2006 Pages: 173 - 181
Sex categorization of conspecific pictures in Japanese monkeys (Macaca fuscata) Reiko KobaAkihiro Izumi Original Article 13 April 2006 Pages: 183 - 191
How great apes perform on a modified trap-tube task Nicholas J. MulcahyJosep Call Original Article 13 April 2006 Pages: 193 - 199
Spatial relational learning in rufous hummingbirds (Selasphorus rufus) Jonathan HendersonT. Andrew HurlySusan D. Healy Original Article 26 April 2006 Pages: 201 - 205
Evidence against integration of spatial maps in humans Bradley R. SturzKent D. BodilyJeffrey S. Katz Original Article 13 May 2006 Pages: 207 - 217
Movement characteristics support a role for dead reckoning in organizing exploratory behavior Douglas G. WallaceDerek A. HamiltonIan Q. Whishaw Original Article 24 May 2006 Pages: 219 - 228
Can wild common marmosets (Callithrix jacchus) solve the parallel strings task? L. G. HalseyB. M. BezerraA. S. Souto Short Communication 16 March 2006 Pages: 229 - 233
