1. Facial perception of conspecifics: chimpanzees (Pan troglodytes) preferentially attend to proper orientation and open eyes

   • Satoshi Hirata
   • Koki Fuwa
   • Shin Fujita

   Original Paper 06 March 2010 Pages: 679 - 688

   

2. Do apes know that they could be wrong?

   • Josep Call

   Original Paper 20 March 2010 Pages: 689 - 700

   

3. Inter-individual and age differences in exploration, neophobia and problem-solving ability in a Neotropical raptor (Milvago chimango)

   • Laura Marina Biondi
   • María Susana Bó
   • Aldo Iván Vassallo

   Original Paper 19 March 2010 Pages: 701 - 710

   

4. The benefit of symbols: monkeys show linear, human-like, accuracy when using symbols to represent scalar value

   • Margaret S. Livingstone
   • Krishna Srihasam
   • Istvan A. Morocz

   Original Paper Open access 05 May 2010 Pages: 711 - 719

   

5. Stereotyping starlings are more ‘pessimistic’

   • Ben O. Brilot
   • Lucy Asher
   • Melissa Bateson

   Original Paper 13 May 2010 Pages: 721 - 731

   

6. Spatial and feature-based memory representation in free-flying homing pigeons

   • Debra L. Maury
   • Roseanne J. Mauch
   • Verner P. Bingman

   Original Paper 09 May 2010 Pages: 733 - 743

   

7. Monkeys fail to reciprocate in an exchange task

   • Marie Pelé
   • Bernard Thierry
   • Valérie Dufour

   Original Paper 16 May 2010 Pages: 745 - 751

   

8. Reinforcement as a mediator of the perception of humans by horses (Equus caballus)

   • Carol Sankey
   • Marie-Annick Richard-Yris
   • Martine Hausberger

   Original Paper 21 May 2010 Pages: 753 - 764

   

9. Gaze following in the red-footed tortoise (Geochelone carbonaria)

   • Anna Wilkinson
   • Isabella Mandl
   • Ludwig Huber

   Short Communication 22 April 2010 Pages: 765 - 769

   

10. The memory remains: long-term vocal recognition in Australian sea lions

    • Benjamin J. Pitcher
    • Robert G. Harcourt
    • Isabelle Charrier

    Short Communication 06 May 2010 Pages: 771 - 776

    

11. Great ape foresight is looking great

    • Mathias Osvath

    Commentary 06 July 2010 Pages: 777 - 781