Sea cucumbers are repulsive to most predators, so the pearl fish is safe inside.
大多数捕食者排斥海参，所以珍珠鱼在里面很安全PD@rH6#_fIiEY。
It'll stay until it's time to feed again.
它会呆在那里直到下一次觅食0~p^H6#hH6;z5。
It doesn't harm its host, but the bad news for sea cucumbers is that pearl fish are happy to share that temporary home with others.
它对寄主无害，但对海参而言坏消息是珍珠鱼喜欢与大家分享它们的临时住所_A*3!^YJRJutE3s^8Xps。
It seems there's plenty of room for all.
看来里面空间足够大家呆的O!B0+9K18NkXV4me0T。
The Barrier Reef we see today is comparatively young.
我们现在看到的大堡礁相对年轻UT_q8g&&5J!%D。
It began to form during the last ice-age when sea levels were 120 meters lower than they are today.
它们在上一冰河世纪开始形成，那时海平面比现在低120米&J1(|mu]jWX。
When the ices began to melt, the growth of corals get paste of the rising seas blocking off the waters of the lagoon.
当冰层褪去，随着海水上升开始生长，将环礁湖的水体封闭了起来3GJAO~zp3db@。
And during that one great event, another important habitat was created.
经过那个大事件，另一个重要的栖息地出现了QCA!Qj1.UTZh.]S~eS。
Stretching away behind May to the Horizon, it's the greatest expense of the lagoon.
在我身后一直延伸到地平线的是广阔的环礁湖，
And yet admit 10,000 years ago, that's a blink of an eye in geological time.
在仅仅1万年前，那只是地质年代的一瞬间5g-2bBA;xa8TR!1UNej5。
The beach under standing on would have been a slope of the hill overlooking a plane covered in Eucalyptus forest.
我所站的这片海滩，曾是一座俯视着树林平原的小山坡Q7-6ASuF_7。
With the sea level rose, the plain was inundated,and the hill became an island.
但是海平面上升，平原被淹没而小山变成一座岛屿AOLirv9)YyU_Qf5nL。
These continental islands as they're known are essentially pieces of mainland cut off by the rising water.
这些陆边岛正如它们的名字是被上升的海水隔开的大陆地块)kDK|zXl4brGmGI17。
There are 600 of them scattered about the lagoon.
在环礁湖上星罗棋布着600多座这样的小岛^]H&X8=Wth(*7z)V。