What Is The Meaning Behind The Moo?
Researchers are trying to figure out what cows are saying to each other — and us. Often, it seems that cows moo to communicate that something is wrong, or different.
Đọc thêm tại NPR
at May 25, 2016 at 10:37PM
Health & Science
Thứ Tư, 25 tháng 5, 2016
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