Chim đếm như ngườiNgười không phải loài duy nhất đếm số từ trái sang phải, bởi một nghiên cứu chứng minh rằng chim cũng làm như vậy.
gt; Những động vật biết đếmTừ lâu giới khoa học phát hiện ra rằng nhiều loài động vật - như ong mật, vượn cáo, sâm cầm Bắc Mỹ, kỳ nhông lưng đỏ - có khả năng đếm. Tuy nhiên, chưa có ai chứng minh rằng động vật cũng "đọc" số từ trái sang phải giống như người.Các nhà khoa học của Đại học Padua (Italy) tìm hiểu khả năng đếm của chim bằng cách nghiên cứu một đàn chim bổ hạt Clark (thuộc họ quạ). Đàn này có cả những cá thể trưởng thành và con non.
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