The Arctic mammals, known as "sea unicorns" thanks to their single long tusks, also transmitted measurements for the winter layer of surface water that shields sea ice from the warmer waters below.

这种因为长着一根长牙而被称为“海洋独角兽”的北冰洋哺乳动物，同时还传输冬季海水表面的温度，这层海水将海面冰层和下面温暖的海水隔离开来。

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After the female penguin lays a single egg, she transfers it to the male to incubate while she heads out to sea to feed.

当企鹅妈妈下蛋之后，她就会把蛋转交给父亲孵化，这段时间内她就去海里觅食。

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Half a mile before the lighthouse itself, there's a car park, and the rest of the route is over a single-track country lane, with a low stone wall on the side closest to the sea.

离灯塔半英里的地方有一个停车场，再接下来的路是一条单行的乡间小道，靠着海的那边有一道低矮的石头墙。

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The Indianapolis' sinking was the single worst American naval disaster at sea.

FORBES: Fact and Comment

"The international community should be outraged that Iceland could almost single-handedly sink deep-sea protection and the food security of future generations, " said Ms Sack.

BBC: NEWS | Science/Nature | Ban on 'brutal' fishing blocked

With 40% of Britain's power already coming from gas plants, that is causing worries about over-reliance on a single fuel, particularly since dwindling North Sea stocks will force Britain to import more gas from overseas.

ECONOMIST: Energy and climate change