the pressure here is three hundred times that at the surface. 压强是地面的300倍
Gazing ever upwards, it watches for prey, silhouetted against the faint glimmerings of light from the surface. 向上凝视, 可让它在微弱光线的环境下发现猎物的影像
Every night, wherever conditions are right, countless millions of creatures from the deep migrate to the surface, seeking food. 如果环境适宜, 每天晚上会有无数的深海生物到海面来觅食
Cory's shearwaters. They're waiting for the dolphin to drive the prey closer to the surface. 猛鹱 正在等着海豚把猎物赶上水面
They drive the fish upwards, trapping them against the surface 它们将鱼儿赶上海面,目的是诱捕它们
In February, that takes them to the surface waters far from the coast of Venezuela. 二月,鲸鲨从遥远的委内瑞拉海岸来到这片浅海
It covers more than half the surface of our planet 地球表面多半被海洋覆盖着
The Benguela Current sweeps along the western coastline of Southern Africa driving nutrient rich waters up to the surface 本格拉寒流--沿南部非洲西岸流动 给海洋表面带来充足养分
Along the coast of California, ocean currents carry a constant supply of nutrients up from the depths to the surface layers. 在加利福尼亚沿海,洋流持续不断的把养分从海底 带到海平面上来
By midsummer, the surface nutrients have all been absorbed. 直到夏至 海洋表面的养分全部被摄取