ScienceDaily Posted December 7, 2017 Share Posted December 7, 2017 Biologists have discovered how New Caledonian crows make one of their most sophisticated tool designs -- sticks with a neatly shaped hooked tip. New Caledonian crows are the only species besides humans known to manufacture hooked tools in the wild. The study reveals how crows manage to fashion particularly efficient tools, with well-defined 'deep' hooks. Read the full article on ScienceDaily Link to comment Share on other sites More sharing options...
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