The giant freshwater Mekong River stingray is just one of many mega fish species that could be threatened by dam-building plans in the Mekong River Basin.

湄公河流域的筑坝计划将会威胁到很多巨型鱼类，这种巨型淡水黄貂鱼只是其中一种。

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If certain species should become extinct, Kraemer saysthere would be enough of the basic building blocks to reintroduce the speciesin the future.

Kraemer说，如果将来某一物种可能灭绝，基础的生命控制中心将再导入足够的物种。

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It is possible that only collaborative species are able to get away with the nomadic life imposed by having to use herbaceous plants as building materials.

这可能是只有协作的种群能够逃脱因必须使用草本植物作为建筑材料而强加的流浪生活。

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There are at least 260 species of reef-building coral and 70 species of sponges, plus dugong (a manatee cousin), sharks, manta rays, and about 14 species of whale, dolphin, and sea turtles.

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Although there is no early prospect of a global shortage of any of the earth's resources, a larger population does change the earth and its environment, removing forests, cultivating land or building on it, and driving out other species, and that is itself a cause for legitimate concern.

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"It will be replaced with a tree of a different species and we are confident that the building will be completed by the summer, " said architect Michael Batcup.

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