1. Leading a conspecific away from food in ravens (Corvus corax)?

   • Thomas Bugnyar
   • Kurt Kotrschal

   Original Article 10 September 2003 Pages: 69 - 76

   

2. Testing for social learning and imitation in common marmosets, Callithrix jacchus, using an artificial fruit

   • Christine A. Caldwell
   • Andrew Whiten

   Original Article 16 September 2003 Pages: 77 - 85

   

3. Long-term retention of the differential values of Arabic numerals by chimpanzees (Pan troglodytes)

   • Michael J. Beran

   Original Article 18 September 2003 Pages: 86 - 92

   

4. Event memory and misinformation effects in a gorilla (Gorilla gorilla gorilla)

   • Bennett L. Schwartz
   • Christian A. Meissner
   • Leslie D. Frazier

   Original Article 02 October 2003 Pages: 93 - 100

5. Comparative and categorical spatial judgments in the monkey: “high” and “low”

   • Antonio F. Fortes
   • Hugo Merchant
   • Apostolos P. Georgopoulos

   Original Article 07 October 2003 Pages: 101 - 108

   

6. Global-feature classification can be acquired more rapidly than local-feature classification in both humans and pigeons

   • Kazuhiro Goto
   • A. J. Wills
   • Stephen E. G. Lea

   Original Article 11 October 2003 Pages: 109 - 113

   

7. Direct observations of pandanus-tool manufacture and use by a New Caledonian crow (Corvus moneduloides)

   • Gavin R. Hunt
   • Russell D. Gray

   Original Article 28 November 2003 Pages: 114 - 120

   

8. Selection of tool diameter by New Caledonian crows Corvus moneduloides

   • Jackie Chappell
   • Alex Kacelnik

   Original Article 29 November 2003 Pages: 121 - 127

   

9. Visual discrimination of normal and drug induced behavior in quails (Coturnix coturnix japonica)

   • Yumiko Yamazaki
   • Naomi Shinohara
   • Shigeru Watanabe

   Short Communication 10 October 2003 Pages: 128 - 132