Analyzing brain cells from normal mice.

分析正常小鼠的脑细胞。

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They compared the so-called sweet-blind mice to normal mice.

他们用这种“甜味盲”老鼠与正常老鼠做比较。

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The mutant mice also bounced back faster than the normal mice from sleep deprivation.

在被剥夺了睡眠后，变异老鼠比正常老鼠精神恢复得更快。

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The mice with the mutation needed less sleep than normal mice.

VOA: special.2009.08.26

Three months after the tests, the normal mice were still drinking the original amount.

BBC: Genes may drive stressed-out drinkers

However, three weeks later the mutant mice began drinking approximately three times more alcohol than the normal mice.

BBC: Genes may drive stressed-out drinkers

But the researchers noted that they mounted less often, were less apt to penetrate and did not stick at it for as long as the normal mice.

ECONOMIST: Behaviour of the sexes