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Birds are capable of dexterous sensory–motor activities such as tool use. Reaching is a crucial component of tool use and is a… Expand The chimpanzee (Pan troglodytes) is well-known in both nature and captivity as an impressive maker and user of tools, but… Expand This contribution presents the study of species-group of Plumarius Philippi 1873, as the result of a survey of the morphological… Expand Tool use is of great interest for cognitive research, largely because it can be particularly revealing about the underlying… Expand We present a novel IDM-CORVUS model for the usage of supporting multiple users in Cognitive Radio systems. Interleave-Division… Expand Abstract The American crow (Corvus brachyrhynchos) is known to suffer 100% mortality from infection with the New York 1999 strain… Expand We show that the learned vocalizations of male and female large-billed crows (Corvus macrorhynchos) are similar and that their… Expand Although animals (particularly tool-users) are capable of solving physical tasks in the laboratory , the degree to which they… Expand The trap-tube problem is used to assess whether an individual is able to foresee the outcome of its actions. To solve the task… Expand