Lemmings, small rodents of the arctic and subarctic regions of the Northern Hemisphere, have long been a byword for mass mindlessness and mass suicide.

旅鼠是一种生活在北半球北极区和亚北极区的小型啮齿类动物，一直以来人们流传着很多关于他们愚笨和自杀的笑话。

Lemmings , small rodents of the arctic and subarctic regions of the Northern Hemisphere, have long been a byword for mass mindlessness and mass suicide.

旅鼠是一种生活在北半球北极区和亚北极区的小型啮齿类动物，一直以来人们流传着很多关于他们愚笨和自杀的笑话。

Eellike fishes found in subarctic coastal waters.

亚北极水域中似鳗的鱼。

Subarctic temperatures will force us underground for a billion years.

到那个时候我们就要在地下住好几十亿年呢!

Boreal forests occupy the subarctic zone and are generally evergreen and coniferous.

北部森林占据亚北极区地带而通常是常绿和松树类.

Girls are more likely to be born at tropical latitudes than in temperate or subarctic climes, according to new research.

一项新研究表明：比起温带和亚北极地区，在热带地区生女孩的可能性更大。

Girls are more likely to be born at tropical latitudes than in temperate or subarctic climes , according to new research.

一项新研究表明：比起温带和亚北极地区，在热带地区生女孩的可能性更大。

The Arctic and Subarctic are of particular interest because these high latitudes are among the world's first locations to begin experiencing climate change.

北极和亚北极这些高纬度地区是世界上最先经历气候变化的地方，因而引起了人们特别的兴趣。