Functional referents and acoustic similarity revisited: the case of Barbary macaque alarm calls Julia FischerKurt Hammerschmidt Original Article Pages: 29 - 35
Gaze discrimination learning in olive baboons (Papio anubis) Sarah-Jane VickDalila BovetJames R. Anderson Original Article Pages: 1 - 10
Cognitive capacities for behavioural flexibility in wild chimpanzees (Pan troglodytes): the effect of snare injury on complex manual food processing Emma J. StokesRichard W. Byrne Original Article Pages: 11 - 28
Categorization of multidimensional geometrical figures by chickens (Gallus gallus f. domestica): fit of basic assumptions from exemplar, feature and prototype theory Christian W. WernerGerd Rehkämper Original Article Pages: 37 - 48
Transitive choices by a simple, fully connected, backpropagation neural network: implications for the comparative study of transitive inference. C. De Lillo D. Floreano F. Antinucci Original Article Pages: 61 - 68