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December 10, 2017 - Sci-News.com

Study Provides Insights into How New Caledonian Crows Make Their Hooked Stick Tools

Study Provides Insights into How New Caledonian Crows Make Their Hooked Stick Tools

The hook is widely regarded as one of humankind’s most important innovations, with skilful reshaping, a useless piece of raw material is transformed into a powerful tool.

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