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15 remarkable animals that use tools

By: Bryan Nelson on Oct. 28, 2009, 10:09 a.m.
A black palm cockatoo perched on a tree limb

Photo: Jim Bendon/Flickr [CC by SA-2.0]

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Parrots may be the most intelligent birds in the world, and examples of their use of tools are numerous. Many pet owners discover this firsthand when a trickster bird uses a piece of metal or plastic to lift open its cage lock. Palm cockatoos (seen here) have been known to pad their beaks with leaves to twist open nuts, like a human would use a towel to improve traction when opening a soda bottle.