10 - 英语听力.mp3

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10 - 英语听力.mp3

[00:02.15]The snow leopar...

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[00:02.15]The snow leopard is the world's highest-living big cat.
[00:08.33]But there's another,smaller predator that ranges even higher, almost to the roof of the world.
[00:14.21]
[00:23.67]At a mind-numbing 8,848 metres high, Everest is one of the most hostile places for life on Earth.
[00:34.39]Hundreds of people have died trying to conquer it.But when climbers first reached the ice fields three quarters of the way up the mountain,something had already beaten them to it.
[00:46.21]
[00:50.04]This jumping spider is the highest permanent resident on the planet.
[00:53.99]
[00:55.06]Totally at home amongst the glaciers of Everest, it scours the slopes for wind-borne prey such as springtails.
[01:01.66]
[01:02.64]Chinese call this fierce little hunter the "fly tiger".
[01:05.66]
[01:09.43]Jumping spiders are found all over the world.
[01:12.41]
[01:13.06]Their eight eyes include an oversized central pair, which act like powerful binoculars to spot potential victims.
[01:20.29]
[01:24.45]They use hydraulic pressure to work their legs like pistons, catapulting up to 30 times their own body length.
[01:31.92]
[01:33.61]The ideal way to get around in rocky terrain.
[01:37.07]
[01:38.69]But like all mountaineers,they always secure a safety line first.
[01:43.68]
[01:52.52]A springtail grazes on detritus, unaware that it's being stalked by such an acrobatic predator.

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