In the case of those fed on formula milk low in DHA, though, children without the DHA-making ability had an average IQ 7.8 points lower than those with it.

而在用DHA含量较低的配方奶粉喂养的孩子中，自身没有DHA生成能力的孩子的平均智商要比有这种能力的孩子的智商低7.8。

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For example, our ability to digest the lactose in milk after infancy arose after we domesticated cattle.

比如，在驯养了牛之后，我们就进化出了一种在婴儿时期过后也可以消化牛奶中的乳糖的能力。

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"There may be factors in the mother's breast milk, but we don't have the ability to actually look at that," Kuzawa notes.

“可能在母体的母乳中也有一些成分对他们的成长有影响，但我们目前没有能力查出。”酷咋瓦说。

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Goats are valuable not just for their milk and meat, or for their ability to control weeds and help renew grasslands, or even for their ability to be gentle around children.

VOA: special.2010.09.07

But the discovery that the bug has the ability to survive milk processing is likely to provoke calls to research the issue.

BBC: Minister declares milk 'safe'

One gene that spread in many parts of Europe along with the migrants gave adults lactose tolerance, or the ability to digest milk.

WSJ: Migrations Spurred Agriculture Spread, Studies Indicate

These hormones include cortisol (which is related to stress), estradiol (the main female sex hormone) and prolactin (which, as its name suggests, triggers her breast tissue to develop the ability to secrete milk).

ECONOMIST: Hormones and fatherhood