Only one creature has carved a life for itself in every habitat on earth.
只有一种生物为了自己的生存，在地球的每一个角落都留下了印迹。
That creature is us.
那就是人类。
All over the world, we still use our ingenuity to survive in the wild places,
天地悠悠，我们仍依靠创造力来努力存活于世，
far from the city lights, face to face with raw nature.
远离文明开化的城市，直面原始险恶的自然。
This is the human planet.
这就是人类星球。
The sea covers 70% of our planet's surface.
海洋覆盖了地球表面的70%。

It's home to three-quarters of all life on Earth.
四分之三的地球生物以海洋为家。
All the creatures found here are perfectly adapted to thrive in the ocean... all except one.
所有徜徉其中的生物都在这里生息繁衍，只有一个例外。
We are not evolved for a life aquatic,
我们并非为水而生，
and we're way out of our depth in this dangerous and alien world.
这个危险陌生的环境超乎了我们的极限。
But great opportunities await those people who dare to venture into the water.
但是对于那些敢于探险的人们来说，巨大的机遇就在前方。
As we immerse ourselves ever deeper in the big blue, how do we overcome the enormous challenges that confront us?
我们一步步向海洋的深处进发，如何克服面对的这些巨大挑战呢？