Animals are vehicles through which genes reproduce.

动物是基因自我复制的工具。

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This includes running tracks above or below roadways to avoid railroad crossings and fencing off areas to avoid collisions with animals, people and road vehicles.

这包括运行轨道要高于或低于现有铁路以避免平交道，与其他区域隔离以免与行人、动物、公路车辆碰撞。

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You might think, therefore, that such people would be more aware of the movements of vehicles than of animals.

你可能很疑惑，认为这样的人应该对车辆的移动较之动物更加敏感。

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Along these lines, the evolutionary biologist Richard Dawkins took the general step of suggesting that animals are the vehicles through which genes exploit to reproduce.

按此种方法，进化论生物学家理查德·道金斯,采取常规方式建议到动物是工具,可被用于繁衍基因。

耶鲁公开课 - 心理学导论课程节选

Animals are vehicles through which genes reproduce.

动物是基因自我复制的工具。

耶鲁公开课 - 心理学导论课程节选

The system is evidently able to distinguish between vehicles, animals, and humans -- and it can even differentiate between different types of human activity, including walking, running, and digging.

ENGADGET: UA engineers develop 'invisible,' fiber optic border monitoring system

In the long run, though, it seems the train has reduced the pollution formerly caused by cars and trucks and reduced the number of animals killed by vehicles driving through the park.

BBC: Eco-scorecard to the world��s great attractions

Apprentices must train for years under master guides and don't just learn to spot and track animals from the comfort and safety of their vehicles.

WSJ: Walk With the Animals