会爬瀑布的鱼

在夏威夷的河流里，生活着一种叫石攀鰕虎鱼的小鱼。它比你的手指还要小。但这条小鱼会做一件了不起的事：它会爬瀑布。

In the rivers of Hawaii lives a small fish called the rock-climbing goby. It is smaller than your finger. But this little fish does something amazing: it climbs waterfalls.

这种鰕虎鱼在河流的高山处出生。孵化以后，河水把小鱼冲到大海里。等它长大了，就必须回到山上高处平静的水域。只有一条路：向上爬。它用嘴巴吸住湿滑的岩石，嘴巴的作用就像一个小吸盘。它的肚子上还有第二个吸盘。嘴巴，肚子，嘴巴，肚子。它就这样一厘米一厘米地，沿着瀑布后面的岩石向上爬。

The goby is born in the river, high in the mountains. After it hatches, the water carries the baby fish down to the sea. When it is bigger, it must return to the calm water high up the mountain. There is only one way: up. The goby holds the wet rock with its mouth, which works like a small suction cup. It also has a second sucker on its belly. Mouth, belly, mouth, belly. Centimetre by centimetre, it climbs straight up the rock behind the falling water.

有些瀑布比二十层楼还要高。对这么小的一条鱼来说，这就像一个人要爬上好几公里高的山。这种鰕虎鱼并不着急。它只是从不停下。

Some of these waterfalls are taller than a twenty-storey building. For a fish this small, that is like a person climbing a mountain many kilometres high. The goby does not hurry. It just never stops.