上个月，加拿大研究人员预测温度升高将会使壁虱和蚊子一类的昆虫扩散到北方更远的地区。

Last month, researchers in Canada predicted that temperature increases there will spread insects like ticks and mosquitoes farther north.

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东英吉利大学（University of East Anglia）的科学家们发现，随着海洋温度上升，21个物种已经改变了分布区域，18个物种已经转移到更远的北方。

Scientists at the University of East Anglia found that 21 species had shifted their distributions in line with the rise in sea temperature, and 18 species had moved much further north.

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但是并非是迁往最近最丰富的水域，它们游向了更远更贫瘠的北方水域。

But instead of heading to the closest and richest waters, they swim north to far less productive waters.

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