The park is now becoming more and more popular with those who want to see wolves in their natural environment.

这个公园现在越来越受那些想在自然环境中看到狼的人的欢迎。

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The researchers paired males and females in cages designed to mimic their natural environment, while infrared cameras beamed video of the creatures' nighttime liaisons back to the lab.

他们把配对的雌性和雄性蝙蝠放入笼中，用以模仿自然环境，然后红外摄像头会把它们在夜间的勾交行为拍下传到实验室。

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Another method is to protect the animals in their natural environment by creating wildlife reserves and parks and using game wardens to look after them.

另一种在自然环境中保护动物的办法，就是创建野生动植物保护区和野生动植物园并设置禁止渔猎野生动物监督官来看护这些动物。

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And these could affect the natural balance in their environment.

VOA: special.2009.10.27

Goldsworthy works in natural materials that soon return to their natural environment, and Nagorka's pieces have a similar fate.

NPR: Stefanie Nagorka, Do-It-Yourself Sculptor

Because residents have a vested interest in protecting their own communities and environment, they are the natural leaders of the ecotourism charge.

BBC: Belize��s lessons in eco-tourism

"We aren't disclosing when and where we release them, as we don't want to stress them when they go back to their natural home environment, " he said.

BBC: Guernsey animal charity to release two seal pups