Crows Use Tools Too

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“A captive New Caledonian crow forages for food using a stick tool.” Source of caption and photo: online version of the NYT article quoted and cited below.

(p. D3) New Caledonian crows, found in the South Pacific, are among nature’s most robust nonhuman tool users. They are well known for using twigs to dislodge beetle larvae from tree trunks.

And there’s a good reason. By foraging for just a few larvae, a crow can satisfy its daily nutritional needs, which explains the evolutionary advantage of learning how to use tools, researchers report in the journal Science.

For the full story, see:
SINDYA N. BHANOO. “OBSERVATORY; Crows Put Tools to Use to Access a Nutritious Diet.” The New York Times (Tues., September 21, 2010): D3.
(Note: the online version of the article is dated September 20, 2010.)

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