Tool use in animals : cognition and ecology / edited by Crickette M. Sanz, Washington University, St Louis, USA ; Josep Call, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany ; Christophe Boesch, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.

"The last decade has witnessed remarkable discoveries and advances in our understanding of the tool using behaviour of animals. Wild populations of capuchin monkeys have been observed to crack open nuts with stone tools, similar to the skills of chimpanzees and humans. Corvids have been observe...

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