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New Caledonian crows craft and use compound tools in the wild

Crows fashion hooked twigs and barbed leaves to extract grubs from wood.

New Caledonian crows display sophisticated reasoning by shaping plant materials into precise tools to probe tree bark for larvae. Laboratory experiments show they can solve multi-step puzzle boxes and pass tool design techniques down through social learning across generations.

Corvus moneduloides, Sarramea, New Caledonia 1
benkeen · CC0 · licence · source

Where this comes from

Encyclopædia Britannica

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Tags: crow, birds, intelligence

New Caledonian crows craft and use compound tools in the wild: the short answers

Where does this come from, and can I check it?
Crows fashion hooked twigs and barbed leaves to extract grubs from wood. The figure is taken from Encyclopædia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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