在加拿大北极的北方地区，海鸟在海洋中捡起危险的化学物质，并将它们运送到鸟类生活的池塘附近。
Way up north in the Canadian Arctic, seabirds are picking up dangerous chemical in the ocean and delivering them to ponds near where the birds live.
在加拿大北极的北方地区，海鸟在海洋中衔起危险的化学物质，并将它们运送到鸟类生活的池塘附近。
Way up north in the Canadian Arctic, seabirds are picking up dangerous chemicals in the ocean and delivering them to ponds near where the birds live.
鲑鱼在河流和海洋之间迁徙时也会携带危险的化学物质。
Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea.
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