吾尊百科网

时间： 2022-10-01 15:13:22

Turns out, dogs have fewer cone receptors than humans — which means they can’t see as many colors. Human cones can detect 3 colors: red, green, and blue. 而狗的锥体只能检测到2种颜色。如何让我的狗在家里感到害怕？用食物诱惑它们。不要立即关门。这可...