It can make fine visual distinctions because it is blessed with one million cones per square millimeter in its retina.

它的视网膜上每平方毫米有一百万个视锥细胞，所以它能分辨出很细微的视觉差别。

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When they detect light, rods and cones pass the visual signal from nerve cell to nerve cell to the visual processing part of the brain.

当光线被这些感受器感受到时，杆状和锥状细胞就把视觉信号从一个神经细胞传到另一个神经细胞，一直传送到大脑负责成像处理的区域。

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What's more, these chicken cones are distributed evenly throughout the retina, enhancing the birds' ability to see colors all around their visual field.

此外，这种鸡的锥体均匀的分布在整个视网膜内，加强了他们整个视觉系统辨别颜色的功能。

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