Crows are first animals spotted using tools to carry objects

New Caledonian crows ... have been filmed inserting sticks into objects to transport both items at once – a feat that has never been seen in non-humans.

More research is needed to see whether the birds also use tools this way in the wild. One possible use could be transporting unwieldy food items that they then cache for later,...

Screen grab from the article's video. A metal nut is carried away on a stick.

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