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 ...
Scientists have been given an extraordinary glimpse into how wild New Caledonian crows make and use 'hooked stick tools' to hunt for insect prey. Biologists have captured first recordings documenting ...
Dr Jolyon Troscianko, from the University of Exeter, and Dr Christian Rutz, from the University of St Andrews, have captured first video recordings documenting how these tropical corvids fashion these ...
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