The evolution of cognition Evolutionary psychology in the round Cecilia Heyes Psychophylogenesis: innovations and limitations in the evolution of cognition Ludwig Huber Modularity and the evolution of cognition Sara Shettleworth Cognitive evolution: a psychological perspective M.E. Bitterman What must be known in order to understand imprinting Patrick Bateson Stimulus equivalencies through discrimination reversals Juan D. Delius Masako Jitsumori and Martina Siemann Abstraction and discrimination Nicholas J. Mackintosh Primate worlds Kim Sterelny Two hypotheses about primate cognition Michael Tomasello Causal cognition and goal directed action Anthony Dickinson and Bernard W. Balleine Causal reasoning mental rehearsal and the evolution of primate cognition Robin I.M. Dunbar Cause effect reasoning in humans and animals Duane M. Rumbaugh Michael J. Beran and William A. Hillix The privatization of sensation Nicholas Humphrey The search for a mental Rubicon Euan M. Macphail Declarative and episodic like memory in animals: personal musings of a scrub jay Nicola S. Clayton D.P. Griffiths and Anthony Dickinson Testing insight in ravens Bernd Heinrich Feeding innovations and their cultural transmission in bird populations Louis Lefebvre Climate culture and the evolution of cognition Peter J. Richerson and Robert Boyd Gossip and other aspects of language as group level adaptations David Sloan Wilson ... [et al.]