漂流者 25-英语听力

[00:01.14]Hawaii's 20 surviving species of honeycreeper also evolved from just a few individuals
夏威夷20种生存下来的蜜旋木雀也是从仅仅几只进化而成的 [00:07.15]Compared to seabirds,
跟海鸟比较起来 [00:08.50]honeycreepers are poor fliers
蜜旋木雀不是很好的飞行者 [00:10.88]So how did the ancestors of these forest birds and Hawaii's other castaways get here?
那这些森林鸟的祖先和夏威夷其他的流浪者又是如何来到这里的呢？ [00:16.49]The answer may be blowing in the wind
答案或许就在风中 [00:19.73]Even the gentlest breeze can have a huge impact
即使是最轻微的风也能产生巨大的影响 [00:23.73]Tree ferns stir and release their lightweight spores
树蕨轻轻拂动释放它们轻量级的孢子 [00:27.36]Thermal updrafts can carry the spores 30,000 feet into the jet stream
上升暖气流能将孢子带到三万英里高的高速气流中 [00:32.25]And there are even animals designed to ride these high-altitude air currents
甚至还有一些动物也适合搭乘这些高空气流 [00:36.92]Near-weightless spiderlings are expert ballooners,
几乎没有重量的幼蛛是乘气球的好手 [00:40.45]catching the wind with their gossamer threads
它们用蜘蛛网来纲住风 [00:43.49]Like spores,they, too, can hitch a ride on the jet stream
像孢子一样，它们也能搭上高速气流的便车 [00:47.62]Enduring temperatures of minus 30 degrees centigrade,
忍受着摄氏零下30度的气温 [00:51.46]a spider can cross the breadth of the Pacific in a matter of days
一只蜘蛛在几天内就能横跨广阔的太平洋