1. Domestic pigeons (Columba livia) discriminate between photographs of male and female pigeons

   • Tamo Nakamura
   • Masato Ito
   • R. Frederick Westbrook

   OriginalPaper Pages: 327 - 339

2. Use of a single-code/default strategy by pigeons to acquire duration sample discriminations

   • Rebecca A. Singer
   • Emily D. Klein
   • Thomas R. Zentall

   OriginalPaper Pages: 340 - 347

3. Spatial integration with rats

   • V. D. Chamizo
   • T. Rodrigo
   • N. J. Mackintosh

   OriginalPaper Pages: 348 - 354

4. The basic tastants in aversion conditioning: Evidence for sensory preconditioning and not potentiation

   • Gregory J. Privitera
   • Elizabeth D. Capaldi

   OriginalPaper Pages: 355 - 360

5. Spontaneous alternation behavior in Paramecium

   • Alan W. Harvey
   • Nyron K. A. Bovell

   OriginalPaper Pages: 361 - 365

6. Magnetic compass orientation in C57BL/6J mice

   • Rachel Muheim
   • Nicole M. Edgar
   • John B. Phillips

   OriginalPaper Pages: 366 - 373

7. Serial position effects in social transmission of food preference

   • C. Edith Juárez-Maldonado
   • Guadalupe Ortega-Saavedra
   • J. C. Pedro Arriaga-Ramírez

   OriginalPaper Pages: 374 - 378

8. Effect of required response force on rats’ performance on a VI+ schedule of reinforcement

   • Phil Reed

   OriginalPaper Pages: 379 - 386