Clever Corvids: beckedness (Introduction)
They prefer using the beak on the right or left side!-http://phys.org/news/2014-12-tool-wielding-crows-left-right-beaked.html
They prefer using the beak on the right or left side!-http://phys.org/news/2014-12-tool-wielding-crows-left-right-beaked.html
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