Swedish experiment shows the notoriously brilliant bird has capacity to think ahead, an ability previously documented only in humans and great apes

Scientists from Sweden say ravens are able to think about the future, showing a general planning ability previously documented only in people and great apes.

Researchers Can Kabadayi and Mathias Osvath, of Lund University, tested five captive ravens in two tasks they do not do in the wild: using tools and bartering with humans. The results were published on Thursday by the journal Science.

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