[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.