In the future, the human footprint will go further in the universe.

未来，人类的足迹还将在宇宙中走的更远。

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As the human footprint expands, many amphibians are being pushed back into marginal areas, such as the Mexican cave system where the cave splayfoot salamander (Chiropterotriton mosaueri) turned up.

随着人类足迹的不断扩张，许多两栖物种被推向了边缘地带，比如这次在墨西哥洞穴里发现的穴居八脚火蜥蜴(又名Chiropterotriton mosaueri)。

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Each claw of the footprint is about the size of an average human foot.

这脚印中每个爪子的大小跟人脚差不多大。

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"The human footprint looks much lighter in most cases than it does in the United States or in Europe or in China or anyplace outside of that continent, " Fay tells Alex Chadwick.

NPR: African Flyover Reveals Impact of 'Human Footprint'

Fay and pilot Peter Ragg followed a general map of the "human footprint" on the continent while automatic cameras snapped a photo of the ground below every 20 seconds.

NPR: African Flyover Reveals Impact of 'Human Footprint'

Consider just a few of the noteworthy highlights of the human ecological footprint.

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