Skilful cockatoos able to shape tools from different materials

Tool manufacture was once regarded a defining feature of humankind, but it is now known that a variety of animal species use and make their own tools. In nature, some of the most striking cases of tool-related behavior are seen not just among close relatives of Homo sapiens, such as chimps and other primates, but among birds including crows, vultures and Galapagos finches. Researchers have now shown that Goffin's cockatoos can make and use elongated tools of appropriate shape and length out of amorphous materials, suggesting that the birds can anticipate how the tools will be used.

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