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A golden jackal seen in the mesopotamian marshes .

这是一只生活在美索不达米亚沼泽中的金色豺狼。

Many marshes seem to be returning to productivity .

许多沼泽地也开始重新恢复生机。

The marshes were systematically drained in the mid - to late 20th century .

这些沼泽在20世纪中后期被系统地排干了水。

But it needs to be kept away from the coasts , particularly the fragile , fertile louisiana marshes .

但它需要远离海岸，特别是路易斯安娜生态脆弱却又富饶多产的湿地。

The sea slugs live in salt marshes in new england and canada .

这种海蛞蝓生活在新英格兰和加拿大盐沼地。