1. Animal cognition – the phylogeny and ontogeny of cognitive abilities

   • Tatiana Czeschlik

   Editorial Pages: 1 - 2

2. From cognition to consciousness

   • Donald R. Griffin

   Review Pages: 3 - 16

3. Delayed search for a concealed imprinted object in the domestic chick

   • G. Vallortigara
   • Lucia Regolin
   • Mario Zanforlin

   Original article Pages: 17 - 24

4. Perception of shape from shading in chimpanzees (Pan troglodytes) and humans (Homo sapiens)

   • Masaki Tomonaga

   Original article Pages: 25 - 35

5. An analysis of confusion errors in many-to-one matching with temporal and nontemporal samples

   • A. Santi
   • Lianne Stanford
   • Jennifer Symons

   Original article Pages: 37 - 46

6. To stay or to leave? Decision rules for partner species relocation in two symbiotic pairs of desert beetles

   • O. Anne E. Rasa

   Original article Pages: 47 - 54

7. Place navigation in mammals: a configuration-based model

   • Simon Benhamou

   Original article Pages: 55 - 63

8. Social monitoring in a primate group: the relationship between visual attention and hierarchical ranks

   • Nicole L. McNelis
   • S. L. Boatright-Horowitz

   Original article Pages: 65 - 69

9. Tool use by naked mole-rats

   • Gabriela Shuster
   • P. W. Sherman

   Short communication Pages: 71 - 74

10. Book reviews

    Pages: 75 - 76