Cockatoos 'pick' puzzle box locks: Cockatoos show technical intelligence on a five-lock problem

[unable to retrieve full-text content]A species of Indonesian parrot can solve complex mechanical problems that involve undoing a series of locks one after another, revealing new depths to physical intelligence in birds.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/strange_science/~3/SfSUL6YgkLE/130704095123.htm

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