Watch a raven use a rock to get a treat | Science News
A raven gets a snack out of a box by dropping in a rock that tilts a shelf inside and lets food tumble out at the bottom. Tests of selecting and saving the rock used in this task suggest the birds have some capacity to think ahead. Read more: https://www.sciencenews.org/article/ravens-pass-tests-planning-ahead-unnatural-tasks

Credit: C. Kabadayi and M. Osvath

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