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
Gina Philips Gisele Bündchen Giuliana DePandi Giulianna Ramirez Grace Park Gretha Cavazzoni Gwen Stefani Halle Berry
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