The developing pigment will give him his own unique pattern, especially on his tail. No two Humpbacks are the same.

长出的颜色会赋予它独一无二的图案，特别是尾巴。每头座头鲸都不相同。

Kell is still learning how to maneuver with his giant flippers, which seem more like giant wings.

凯尔还在学习如何驾驭它的巨大鳍足，鳍足看起来像一对巨大的翅膀。

For now they are good for play but they will become crucial when he grows up and catches fish.

此刻它们有益玩耍，但当它长大捕鱼时它们会变得很重要。

In three months time, Mara must leave this place and take Kell to their feeding grounds.

在三个月内，玛拉必须离开这个地方，带着凯尔前往它们的就食区。

It's a very short time to prepare Kell, but a very long time for her to go without food.

为凯尔做准备的时间非常短，但母鲸必须在非常长时间不进食情况下长途跋涉。

After thirty minutes rest Mara is ready to surface and breathe.

休息三十分钟后，玛拉准备浮出海面呼吸。

Beside his mother, Kell is still tiny, but already he is 15 feet long, and weighs five thousand pounds.

在它的母亲旁，凯尔仍然很小，但已经十五英尺长，重五千磅。

Mother and calf will stay together for one year, and then the little whale will set out on his own.

母子将一起度过一年，然后幼鲸将自立更生。

She must teach him all she knows.

它必须教会幼鲸它所知的一切。