Trí tuệ của loài vẹt bằng một đứa trẻ lên ba
Cập nhật: 14:09 09/08/2012 GMT+7
Thí nghiệm của một nhóm nghiên cứu trường Đại học Vienna cho thấy những con vẹt thông minh hơn những gì bạn biết về chúng
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