Pigeons are often seen as dirty birds and an urban nuisance, but they are just the latest in a long line of animals that have been found to have abilities to help humans.

人们常把鸽子视为肮脏的鸟类或是城市的公害，但他们只是众多有能力帮助人类的动物中的最新一员。

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Trees both spindly and thick, new and old, line the streets; this, along with the frequent broad vistas afforded by empty lots, make the street feel more rural than urban.

沿街而立的树木有粗有细，有老树也有新树；周边的空地总会让人感到眼前景象开阔，这条街道给人的感觉更像置身乡村而不是都市。

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The urban model lends itself well to this style of illustrations because of the amount of line work I have to work with which allows me to be more selective with where I add and remove detail.

这种风格的城市模型渲染图看起来不错，因为在图中我做了大量的线条工作，这样在增加或减少细节的地方，可以让我有更多的选择。

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That's the plan behind the Power Line Urban Sentry (PLUS) project currently being run by the Air Force Research Laboratory and private firm Defense Research Associates, and it's already yielded UAVs that can land on power lines and charge in three hours.

ENGADGET: Air Force developing UAVs that can recharge on power lines

The urban surroundings at the High Line play their part as well.

MSN: Search

The dense urban neighborhood sits in the Cambridge-Somerville line.

WSJ: A Look at the Brothers