hook tool · All Facts

hook tool
A New Caledonian crow named Betty bent straight wire into a hook tool to retrieve food — spontaneous tool manufacture in a bird.
SrcScience (Weir, Chappell & Kacelnik, 2002)

Next evidence →180 degreesRaccoons can rotate their hind feet 180 degrees, letting them climb down trees headfirst like squirrels.

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