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Re-inventing the hook: Orangutans spontaneously bend straight wires into hooks to fish for food

The bending of a Hook into wire to fish for the handle of a basket is surprisingly challenging for young children under eight years of age. Now cognitive biologists and comparative psychologists from the University of Vienna, the University of St Andrews and the University of Veterinary Medicine Vienna around Isabelle Laumer and Alice Auersperg studied hook tool making for the first time in a non-human primate species - the orangutan....

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Re-inventing the hook: Orangutans spontaneously bend straight wires into hooks to fish for food

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