[by:可可英语～www.utensil-race.com]
[00:00:01]The alkali fly has special abilities that enable it to live on this lake.
咸水蝇有特殊能力 才能在这片湖泊生存
[00:07:48]It can walk underwater to eat algae.
它能走到水底吃海藻
[00:10:53]Fine hairs trap air bubbles that prevent it from drowning.
纤细的毛发夹住气泡 使它不致溺毙
[00:15:11]But most critically,
但最大的关键
[00:16:46]the fly has a physiology that can neutralise the lethal levels of salt.
在于这种苍蝇的生理机能 可以中和致命的含盐浓度
[00:23:13]So the alkali fly's dominance of Mono Lake goes unchallenged
于是咸水蝇独霸莫诺湖 所向无敌
[00:29:14]except for a few weeks of the year.
每年只有几个星期例外
[00:42:24]100,000 Wilson's phalarope are migrating to South America.
十万只赤斑瓣蹼鹬 要迁徙到南美洲
[00:47:33]Mono Lake is their only stop-over.
莫诺湖是它们唯一的中途站
[00:50:38]These alkali flies, for them,
这些咸水蝇对它们而言
[00:52:47]are an invaluable and irresistible feast.
是无法抗拒的珍贵飨宴
[01:03:19]A fly has no defence, except tofly and become lost in a vast swarm.
苍蝇没有防身武器，只能凑空飞起 隐身在大群苍蝇里
[01:11:47]It needs considerable skill to pluck an individual fly from the air.
要从空中抓一只苍蝇 需要高超的技巧
[01:24:50]There are gulls are here, too.
这里也有海鸥
[01:30:49]Though their fly-catching techniques are not so refined.
只不过它们 捕苍蝇的技巧不甚精练