can rise all the way to the surface two miles above. 可以一直上升至三公里之上的海平面
In some places, they can be astonishingly violent. 在某些地方 热泉的剧烈程度相当惊人
can engulf prey larger than its own body. 可以吞下比自身还大的猎物
Only highly-specialised vessels can take you there. 只有高度专业化的潜艇才能抵达
With the orca gone, the rays can resume their courtship... 虎鲸离开后 蝠鲼群得以继续它们的求偶行为
The rays are fast and can outmanoeuvre an orca. 蝠鲼的速度很快 甚至快于虎鲸
Here, shelter where eggs can be laid unobtrusively is rare... 在这里 不引人注目的产卵处十分稀少
Even a small piece of drifting kelp can become valuable. 哪怕是一小片漂浮的海藻也会变得弥足珍贵