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The ocean is by no means uniform.
海洋絕非完全一致
Differences in depth, temperature, sunlight and currents
深度，溫度，陽光和水流的差異
pose particular challenges.
帶來不同的問題
One and a half miles down, these hydrothermal vents
在海面下兩公里處的 這些海底熱泉
spew out super-heated water at 450 degrees Centigrade
從地殼裂縫噴出 攝氏四百五十度的
from cracks in the Earth's crust.
超高溫?zé)崴?/div>
Despite the enormous pressure, the total darkness,
雖然水壓極高
and the scaldingly-high temperatures,
周圍一片漆黑 水溫更是炙人
the ancestors of all life may have evolved
所有生命的祖先 或許就在這種地方
in a place just like this.
演化誕生
Pompeii worms.
龐貝蟲之名
So named for their ability to survive volcanic heat.
來自它們耐高溫存活的能力
They share the vents with crabs and two-metre-long tube worms.
它們在熱泉的鄰居，包括蟹類 和兩公尺長的巨型管蟲
They can only survive here
它們只能在這里生存
because they are able to feed on bacteria that thrive around the vents.
在熱泉周圍大量繁殖的細(xì)菌 能填飽它們的肚子
