Crows make their own hooked tools for a quick and easy meal
Crows make their own hooked tools for a quick and easy meal
Last updated April 18, 2018 at 9:33 am
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Our Planet
New Caledonian crows craft delicate hooked tools from twigs to dig for prey like beetle grubs. Research just out compared the use of straight twigs with hooked twigs on a range of naturalistic tasks, and found that the bird-made tools were up to ten times more efficient.
This study was published in Nature Ecology and Evolution.
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