Two species on Earth are known to use hook-shaped tools: humans and New Caledonian crows. And now, for the first time, the people have caught the birds using them on camera.
There are crows all over the world, but the species on New Caledonia, a forested island in the South Pacific, are renowned...
via L.A. Times - Science http://ift.tt/1YCzwjr
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