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Soft corals, several meters across collect the marine snow as it drifts past.
幾米長的軟珊瑚，收集流過它們身邊的海雪。
Whip corals stretch out into the current.
海鞭在海流中伸出手來。
Giant sponges filter nourishment from the cold water.
大海綿從冰冷的海水中汲取營養。
A richly varied community flourishes here
一個豐富的物種群落在這里昌盛，
sustained by the nutrients and detritus in the icy currents that flow around the peak.
得益于洋流持續不斷地攜帶養分從這里流過。
Yet it is all blossoming on an extinct volcano, a mile below the reach of the Sun.
這些生物在這座死火山的的繁榮地點，離陽光照射到的地方還有1英里呢。
A nautilus. It spends it's days hiding four hundred meters down.
鸚鵡螺。白天它躲在400米深的海底。
But as night falls, it ascends up to the reefs, to look for food.
到了晚上，它就游上來到珊瑚礁附近尋找食物。
It's graceful shell contains gas filled floatation chambers, that control it's depth.
它那優美的外殼由充滿空氣的小室組成，使它可以控制深度。
It's powered by a jet of water, squirting from a siphon,
它的動力來自虹吸管噴射的水流，
but it travels shell first, so it can't see exactly where it's going.
由于它是倒著游，所以它自己也很難看清楚自己要去哪里。
It's nearest living relatives are squid and octopus, which, over evolutionary time, have both lost their shells.
它是已經進化到已經沒有殼的章魚和烏賊的近親。
