In July 2010, a brown bear had an itch. To scratch it, he picked up a barnacle-covered rock and rubbed it over his muzzle. Volker Deecke, a researcher at the University of Cumbria in the United ...
In July 2010, a brown bear had an itch. To scratch it, he picked up a barnacle-covered rock and rubbed it over his muzzle. Volker Deecke, a researcher at the University of Cumbria in the United ...
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