Orangutans spontaneously bend straight wires into hooks to fish for food

Cognitive biologists and comparative psychologists have just studied hook tool making in a non-human primate species -- the orangutan. To the researchers' surprise the apes spontaneously manufactured hook tools out of straight wire within the very first trial and in a second task unbent curved wire to make a straight tool.

from Latest Science News -- ScienceDaily https://ift.tt/2FctCIo

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