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Uploaded by mcostand on Aug 6, 2009
From Bird & Emory (2009):http://www.cell.com/current-biology/abstract/S0960-9822(09)01455-9
Science & Technology
Standard YouTube License
Эта птица сообразительней многих моих знакомых...
underr666 17 hours ago
all my respect to these wonderful birds
book224455 3 months ago
:D it chose the three biggest stones first.
fritzgenius15 1 year ago
Aesop's fable wasn't it?
Vennificus 1 year ago
do you know haw much time live the rooks??? :)
stelikc 2 years ago
respect to rooks!
airdog77 2 years ago
awsome
xodeusdk 2 years ago
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Эта птица сообразительней многих моих знакомых...
underr666 17 hours ago
all my respect to these wonderful birds
book224455 3 months ago
:D it chose the three biggest stones first.
fritzgenius15 1 year ago
Aesop's fable wasn't it?
Vennificus 1 year ago
do you know haw much time live the rooks??? :)
stelikc 2 years ago
respect to rooks!
airdog77 2 years ago
awsome
xodeusdk 2 years ago