狗是色盲嗎?

Dogs do see in color. However, they see differently than most people do and are less able to distinguish between colors. Veterinary ophthalmologists have determined that dogs see like people who have red/green color blindness. Dogs』 eyes have receptors for blue and green shades, but not for red shades. As a result, it appears that dogs cannot easily distinguish between yellow, green and red, but they can identify different shades of blue, purple and gray. Color is only one of many visual stimuli that dogs detect in their environment. Brightness, contrast, and especially motion, are extremely important to a dog』s interpretation of what it sees.

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翻譯：狗狗可以看到顏色。然而，他們看到的顏色與人們看到的並不相同，它們不太能分辨顏色。寵物眼科醫師已經得出結論，狗所看到的顏色與紅綠色盲的人有點相似。狗的眼睛有藍色和綠色的光感受體，但沒有紅色的光感受體。因此，狗無法輕易區分黃色，綠色和紅色，但是他們可以輕鬆識別不同深淺的藍色、紫色和灰色。顏色僅僅是狗感知環境的因素之一。亮度，對比度，尤其是物體運動，都是非常重要的因素，並且這些因素更能幫助狗狗來感知它們周圍的環境。

狗狗看到的顏色：

狗狗是色盲嗎？是否只能看到黑白？