The secret behind the New Caledonian crow?s party trick ? using tools ? has been unveiled, biologists say.
Source: http://www.cosmosmagazine.com/news/6051/why-tool-using-crow-no-bird-brain
Haylie Duff Heidi Klum Heidi Montag Hilarie Burton Hilary Duff Hilary Swank Isla Fisher Ivana Bozilovic
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