Long-term memory for concepts in a California sea lion (Zalophus californianus) Colleen Reichmuth KastakRonald J. Schusterman Original Article Pages: 225 - 232
Evolutionary perspectives on imitation: is a comparative psychology of social learning possible? Christine A. CaldwellAndrew Whiten Review Pages: 193 - 208
Interruptions improve choice performance in gray jays: prolonged information processing versus minimization of costly errors Thomas A. Waite Original Article Pages: 209 - 214
Interpopulation variation in the risk-related decisions of Portia labiata, an araneophagic jumping spider (Araneae, Salticidae), during predatory sequences with spitting spiders Robert R. JacksonSimon D. PollardNatasha Fijn Original Article Pages: 215 - 223
Dynamic shifts of pigeon local/global attention Thane FremouwWalter T. HerbransonCharles P. Shimp Original Article Pages: 233 - 243
Do rats in a two-action test encode movement egocentrically or allocentrically? E. Ray C. Heyes Original Article Pages: 245 - 252
Bee-eaters (Merops orientalis) respond to what a predator can see Milind WatveJuilee ThakarSharayu Paranjape Short Communication Pages: 253 - 259