In one type of squirrel monkey, the males lack a visual pigment called L-opsin.

在一种松鼠猴中，雄松鼠猴缺少一种叫做L视蛋白视觉色素。

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Melanin, a pigment that gives hair its colour, is light sensitive and also ACTS as a type of conductor.

头发的颜色来源——黑色素，是一种光敏材料同时也是一种导体。

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It is important to realize that light energy will be absorbed by any type of pigment.

重要的是要认识到，鉴于能源将所吸收的任何类型的颜料。

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Beta carotene is a type of carotenoid, a plant pigment that is a provitamin for vitamin A. During its digestion and metabolism, a percentage is converted to vitamin A, a fat-soluble vitamin that is important for vision, growth and development, and healthy immune and reproductive function.

CNN: Should I take beta carotene as a supplement?